Well, as I said, try searching google for that card model, when I search I get this: Results 1 - 10 of about 38,100 for XFX geforce Ti4200. (0.15 seconds)
More than enough sites with availability, give it a shot.
It's a great budget card... it'll outperform most modern budget and mid-range cards a lot of the time (especially with AA off), and should be a lot cheaper too.