So my PC isn't particularly high-end but I've been happy with it for 2+ years now. It's based on the venerable K10N78 motherboard and runs an AMD 245 (2.9Ghz 2 core) CPU with 4GB of RAM
Truth be told, there are times when it could use a boost tho. I've spent today encoding GBs of videos and it's been painful at time... I've checked and I'm OK on memory (for now, at least) - it's the CPU which could use a poke.
I have a few options because my Mobo takes a WIDE range of updates including (with a BIOS update) the latest 1055 and 1090 Phenoms - but they're pricey and I'd worry about the power/£ and heat/PSU-required aspect in particular (tho I need a new PSU anyway as this 440W is heading for it's 5th birthday and a GPU upgrade is looming too)
A 965 Black Series (3.4Ghz 4 core) is only £85ish but it's a 125W CPU - I'm not sure which 245 I have but they run from 45-65W so that's a BIG step-up in power required/heat generated!? Perhaps sticking with a 95W-or-less might be better? - or should I just go the whole hog and get a 6 core monster :) :)
Also - I'm guessing I have a chance of ducking a W7 reinstall - I've seen an Amd->Amd upgrade work without software changes before (W7 boots - moans about needing updates - reboots and everything is peachy)??
p.s. someone suggested the 955 95W edition but that seems Asian-only so 125W seems a must!?