Ya... not bad, the DC will help. What program do you use, and what render? I plan on buying 3-4 sempron sAM2 systems around the end of the year for a little render farm.
get a dual core cpu. from what i here renderers are leading the field in dual core optimisation. you should get incredible performance from a dual core if you can afford the price tag. i'm not 100% sure so if you aren't either look for some SMP renderers