Asus A8N-SLI Deluxe is widely available in india. it shud cost u around 11-12k. It is a good board if you want a SLi solution but then nothing beats the MSI Diamond SLI board ... it shoud cost around 14-15k (not sure).
If you dont plan to use SLI then Asus A8N-E is very good but SLI will be useful later.
AMD Athlon 64 bit 3000+ (939 pin) costs around 7500/- and 3200+ shud be around 9200/-.
AMD is better than Intel in gaming but i think games also heavily depend on your grafix card, ram, motherboard,etc. Buy either Intel or amd but make sure you have a powerful card and a stable perfoming mobo with plenty of ram ... thats all u need to play games i suppose. and ya dont forget the heat