Looking to find a new motherboard/CPU to upgrade my pc with. I bought an EA650 PSU the other day with an ATI HD 4850. I have 5GB of Corsair DDR2-800.

Current board is some manner of ASUS whose model I forget offhand, with an AMD Dual X2 4800+ CPU.

So almost anything would be an upgrade.

Hoping to not spend more than about 200 all told.

Right now looking at:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813121336
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115052

Oh yes, and the board must be Micro-ATX.

Any suggestions welcome.

gl w/ dat

Well, what you have now is okay. Though if you're going to upgrade now, I'd suggest a CPU with a little more juice. The one you posted should have a decent advantage over your current one, but you could easily get something with a little more power for around the same price (I'm pretty sure anyway).

Other then that, that setup should be good to go...

PS: I don't know why people keep posting for help, when they already have good choices.

You don't need a better CPU. You can save some money by overclocking that one. More than likely, a faster CPU in the same product line will be the same thing but with a higher clock rating.

They don't make individual CPUs for a given product line. The CPUs that end up with no defects and run stable at high clock speeds are the high end CPUs. Ones that have defects or aren't as stable get clocked lower and sold as the cheaper variants of a product line. Thing is, manufacturing processes are so good now that they're all damn similar. You can get a lower end CPU and overclock it without issues. Nowadays even defect-free CPUs probably get sold as lower end because it's profitable to sell a wide range of products.

On the Intel side of things I would base my decision on how much L2 cache I can afford and purchase the cheapest processor in that catagory.

Then overclock.

Emon has a point, I remember reading about my processor (4200+) being overclocked to 2.9 GHz stable.

Like I said, CPU should be fine even at it's current speeds for the next little bit.