What To Do?, an apology in advance! Options

[koda]

I've been reading these forums and doing research for the past week. But I am more confused then from when I had started. What interface?

My intentions are simple. The only thing I plan on recording is my guitar. Mostly it'll be one track at a time, maybe two. I want to stick with firewire. I understand I get what I pay for but I would like to keep it reasonble.

My set up: G4 imac (800 MHz / 512 MB) and Logic 7 Pro is on it's way.

My history. started out on a cassette 4 track many many years ago and upgraded to a Roland VS840GX (used it like a 4 track). I purchased my Mac a couple of years ago with the intention of recording.

I would really appreciate some good advice!