So all I want to do is record vocals with my Shure microphone and guitar/bass through my mic'd amp (or maybe direct out). I don't think a mixer would be good because I only need three or four tracks (guitar, bass, vocals, etc.) and need to be able to edit them all separately on my computer.

I've looked into POD Studio UX1 and it seems pretty good. However, some say the tone is as crappy as a Spider. My max budget would be about $200-$300.

Also, I did read the FAQ's but am still confused on what would be best for me. I'm thinking I need a USB interface.
Ibanez RGT42DX
Vox AC30C2
Digitech Whammy (FOR SALE!)
Dunlop GCB-95F Crybaby
Boss DD-20
Boss SD-1
Ibanez TS9DX
MXR M-108 10 Band EQ