Well, I have a Line 6 Spider IV 15, but I don't really use it:
I found a way to connect my guitar with my Macbook and the drumsets's amp, so I work with the Garageband Effects :) And that makes the recording part much more easier ;)
(It's hard for me to explain how I did it, but I could try if you want xD)
You have much more effects, which you can also edit: For example, I found a way to play like Slash on this Video
-> http://www.youtube.com/watch?v=nFrcPgyRG9w <-
