Kaobadhi,
I like you Ibanez and Behringer USB link. Guitar Rig is a great tool. I would also recommend IK Multimedia Amplitube 2 and Wave GTR 3. I have all of them and my test says, Wave GTR 3 is the best in terms of crunch and clean. Amplitube has module like Jimi Hendrix and Metal. The distortion in Metal is the best. One thing I noticed about Guitar Rig, it's noisy. After testing all these softwares, I've realised that if you do NOT match the impedance of what they want with your audio interface, they sound thin like plastic when you record, no matter how they sound on their website.

Amplitube 2
http://www.ikmultimedia.com/amplitube/ Check out the audio,video demo

Wave GTR 3(PRS Interface sounds way too cool...I've got the software but unless you match their specifications, it does NOT sound as good as they should be, no matter what audio interface you use)
http://www.waves.com/Content.aspx?id=93 check out the video
http://www.waves.com/Objects/waves_videos/584/gtr_vdos/gtr3/TheMakingOfGTR3PopUp.html

I've heard about Protool Eleven and Alien Connection's ReValver Mk III