I have just built my own I5 (quad core 3470) pc, tbh it isnt much quicker than the amd athon dual core 3.2. It is quicker but not that noticable difference. So would budget for something cheaper than the 3470 cpu. Im using the same ssd as in old system but 12 gig ram instead of 8. Its the ssd that makes the difference iimo. Boots up in20 secs. Ssd can be unreliable and can cause problems, like programs stop working etc. I do think my ssd does cause LR & PS to close or stop working unexpectedly.