I hear people always say, AMD is good, AMD is better then Intel, of course it is, but when it comes to chipsets, Intel still rocks, their chipsets are least quirky & most stable
What we should under stand that most of the people out there don't buy an add in graphics card with their system, they buy onboard video based motherboard, with the option to buy a gfx card later. For this they only have a 3 choices
1) ATI Chipset with DirectX 9c based onboard gfx, for this the RS480 chipset is available, but ATI chipsets as a chipset are not that performance oriented compared to Nforce or even highest end VIA or SiS chipset, believe me, try benching for CPU specific benchmarks, & U will find out, also the drivers are quite big, but the good thing is they are also not too buggy & hardly need regular updates. Besides ATI chipset is also available for Intel
2) NVIDIA Nforce 4 variants, this chipset is good, but without onboard gfx, so it is again out of the regular buyer choice question, sure it's really good for gaming, but u also have to buy at least a Rs 3000 graphics card with it, as it has no support for AGP
3) Geforce 6100/6150, Just released, about 2 months ago, & by far the most balanced chipset for value category, infect a perfect companion to go for even if U r making a system for high end gaming, as it is basically a Nforce 4 ultra chip + Geforce 6200 level graphics capability slapped in one package, with an option to add a PCI-E based gfx card later, but so far their is hardly any major manufacturer with full ATX motherboard, there are 3 motherboards for this chipset available in India
Asus A8N-VM CSM
MSI K8NGM2
Gigabyte GA-K8N51PVMT
However other then the Asus, rest are hard to find, but if u can find one, get one, as I said all these are MicroATX motherboards, so if u can live with 2 PCI slots, then only buy this.
4) VIA/SiS, these chipsets are although less popular, but these are very strong, although not in onboard gfx department, it's still DirectX 7 based, so if U are buying a Gfx card, at the time of purchasing a PC then u can also get these if the price is right. If u can find a motherboard with VIA K8M890 chipset, then go for it, it got solid S3 graphics, which is good even for light gaming, & enough to run windows Vista along with hardware video acceleration (as mentioned by VIA)
I right now, hardly recommend the Asus A8N-E rev.2 motherboard for High end system, if u are also buying a gfx card, else anyone of the 3 above mentioned Geforce 6100/6150 based motherboards, although be warned that there are only 2 PCI slots, although the onboard audio is Intel HD audio based, 7.1 channel, they are good enough for everyone out there, even support OpenAL with creative OpenAL drivers installed, so they are better then SB live anyway, but not better then Audigy 2 or X-fi, as they are complete hardware based
One thing to add that AMD has stopped the production of Athlon64 3000+ at all, now the lowest CPU U can find in that range is Athlon64 3200+ E6 or E4 core, however there is still enough stock for A64 3000+ in the market. U can identify the new core by the Processar number as ADA3200CGBOX, notice they will be labled CG