Well, there are many diferents geforces:
Geforce2MX: Very cheap and powerfull, don't buy it if you want to play games at more than 1024x768 or 800x600 2xFSAA.
Geforce2GTS: Here in Spain, remains a few of this cards. More powerfull than MX since it uses DDR memory.
Geforce2Pro: More common than GTS. An advanced GF2 with 64MB and better clock and memory speed.
Geforce2Ultra: The best GF2. Since the Geforce 3 is in the market, it is a little more cheap, but it is still very expensive for most people.
I think the best quality/prize cards are from Leadtek (www.leadtek.com
) or elsa (www.elsa.com
Sorry for my english, I hope this will help you.