How good computer for 10 toons

[MiRai]

no known issue with a 950,

Anyone building a PC should know exactly what happened with 1155 months ago. The only way you're going to get your hands
on a non-B3 revision board is if you actively seek one out.

plus you can nab them at a cool 200 bucks.

1366 Core i7 950 - $270
1155 Core i7 2600 - $300

1366 was considered the enthusiast chipset, while the 1155's have won out in the end, didn't mean there was something wrong with the chipset, nor that 1155's can always outperform a 1366 though the instances where this is true do not appear to be in a wow client case.

This benchmark was taken at 1024x768 resolution so that the GPU would not be the bottleneck and the CPUs could flex
whatever it is that CPUs flex [in this case, FPS]. Source: Anandtech

also, with the 1366 chipset, you can achieve 12 gig's on a single channel 4*3 where you have to use both channels on the 1155 to get pass 8 gig's. not certain if it applies to 1155's chipset, but I could have sworn I saw a post regarding a slight performance in running just one channel instead of using all channels on the 1366 side.

You're absolutely correct that filling up more banks increases the time that it takes the CPU/Chipset to access the memory.
However, the increase of access time is quite negligible. The only people who care about filling up RAM banks are those
trying to break overclocking records where milliseconds may actually mean something.

As Kicksome stated, he had to upgrade to 24GB of RAM (from 12GB) when he switched from 5 to 10 boxing on his 1366
setup. My 1155 board currently has 16GB in it and I use less than 12GB with very nice settings on all my windows. And...
when 8GB (non-ECC) DIMMs come out I can upgrade to 32GB if I think I might ever use that much. Which also means
that you'll be able to fill up 2 out of the 4 banks on an 1155 board and have 16GB and not worry about those extra
milliseconds of access time by filling up all 4 banks.

Get 12 cores

Here are some 8 and 10 core Intel processors.