A coworker swung by a few days ago to ask some questions about using Reflection. I learn really well by example so I decided to use Powershell to show using Reflection. Below is the session I used and later emailed to him. You can see a few spots at the bottom of the example where I was unsure of the syntax on passing an empty parameter array, but I figured it out.
This is a good example of why I like Powershell 
1 [1] » "haha".gettype()
2
3 IsPublic IsSerial Name BaseType
4 -------- -------- ---- --------
5 True True String System.Object
6
7
8 [2] » $temp = "haha".gettype()
9 [3] » $temp.GetProperties()
10
11
12 MemberType : Property
13 Name : Chars
14 DeclaringType : System.String
15 ReflectedType : System.String
16 MetadataToken : 385875994
17 Module : CommonLanguageRuntimeLibrary
18 PropertyType : System.Char
19 Attributes : None
20 CanRead : True
21 CanWrite : False
22 IsSpecialName : False
23
24 MemberType : Property
25 Name : Length
26 DeclaringType : System.String
27 ReflectedType : System.String
28 MetadataToken : 385875995
29 Module : CommonLanguageRuntimeLibrary
30 PropertyType : System.Int32
31 Attributes : None
32 CanRead : True
33 CanWrite : False
34 IsSpecialName : False
35
36
37
38 [4] » $temp.GetProperties()[0]
39
40
41 MemberType : Property
42 Name : Chars
43 DeclaringType : System.String
44 ReflectedType : System.String
45 MetadataToken : 385875994
46 Module : CommonLanguageRuntimeLibrary
47 PropertyType : System.Char
48 Attributes : None
49 CanRead : True
50 CanWrite : False
51 IsSpecialName : False
52
53
54
55 [5] » $temp.GetProperties()[0].name
56 Chars
57 [6] » $temp.GetProperties()[1].name
58 Length
59 [7] » $temp.GetProperties()[1].GetGetMethod()
60
61
62 Name : get_Length
63 DeclaringType : System.String
64 ReflectedType : System.String
65 MemberType : Method
66 MetadataToken : 100663629
67 Module : CommonLanguageRuntimeLibrary
68 MethodHandle : System.RuntimeMethodHandle
69 Attributes : PrivateScope, Public, HideBySig, SpecialName
70 CallingConvention : Standard, HasThis
71 ReturnType : System.Int32
72 ReturnTypeCustomAttributes : Int32
73 ReturnParameter : Int32
74 IsGenericMethod : False
75 IsGenericMethodDefinition : False
76 ContainsGenericParameters : False
77 IsPublic : True
78 IsPrivate : False
79 IsFamily : False
80 IsAssembly : False
81 IsFamilyAndAssembly : False
82 IsFamilyOrAssembly : False
83 IsStatic : False
84 IsFinal : False
85 IsVirtual : False
86 IsHideBySig : True
87 IsAbstract : False
88 IsSpecialName : True
89 IsConstructor : False
90
91
92
93 [8] » $temp.GetProperties()[1].GetGetMethod().Invoke
94
95
96 MemberType : Method
97 OverloadDefinitions : {System.Object Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo cu
98 lture), System.Object Invoke(Object obj, Object[] parameters)}
99 TypeNameOfValue : System.Management.Automation.PSMethod
100 Value : System.Object Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo cul
101 ture), System.Object Invoke(Object obj, Object[] parameters)
102 Name : Invoke
103 IsInstance : True
104
105
106
107 [9] » $temp.GetProperties()[1].GetGetMethod().Invoke("hello world", [])
108 Unable to find type []: make sure that the assembly containing this type is loaded.
109 At line:1 char:65
110 + $temp.GetProperties()[1].GetGetMethod().Invoke("hello world", []) <<<<
111 [10] » $temp.GetProperties()[1].GetGetMethod().Invoke("hello world")
112 Cannot find an overload for "Invoke" and the argument count: "1".
113 At line:1 char:47
114 + $temp.GetProperties()[1].GetGetMethod().Invoke( <<<< "hello world")
115 [11] » $temp.GetProperties()[1].GetGetMethod().Invoke("hello world", {})
116 Exception calling "Invoke" with "2" argument(s): "Parameter count mismatch."
117 At line:1 char:47
118 + $temp.GetProperties()[1].GetGetMethod().Invoke( <<<< "hello world", {})
119 [12] » $temp.GetProperties()[1].GetGetMethod().Invoke("hello world", $Null)
120 11
121 [13] »
122
Note - I used the :toHTML command from Vim along with Peter Provost's Powershell syntax file to get the color. Powershell doesn't support color at the console like this yet without explicitly passing color arguments to Write-Host.