How many instruments do you intend to record at once? Do you need mic preamps included?
A good, low budget solution for just recording one guitar direct could be the Line 6 POD Studio GX. It comes with Line 6 modeling software also. $99 new.
If you want to be able to mic up something--vocals or a guitar amp--the Focusrite Scarlett Solo could be a good option. Decent Focusrite preamp on board, record direct or a microphone. Minimal but gets the job done at home. Presonus also has some decent options in the $99-150 price range.
If you want to record more instruments simultaneously and at low budget, Behringer has a Firewire interface that has 8 preamps and has gotten some decent reviews. You can also find a used PreSonus FirePod or similar.
If you're looking for higher end than that, I'd recommend asking this question on Gearslutz, but I'd strongly recommend starting slow and figuring out how serious you are about recording as an art. It's a hobby that will make guitar GAS seem trivial.