I want to buy a new TV capture card and want to know what people suggest. the comp it is going in is a

AMD Athlon XP2100
512mb DDR ram
7200 rpm 80 GB hd

I want it to be fairly cheap and hopefully do hardware mpeg1 compression with hopefully the same motion search precision of tmpegenc (on a tv you don't notice but it makes the picture infinitly better at a compputer). All this is for easy creation of VCD's.

Plus I would like it to be Linux compatible since the computer may move to Linux