Help needed with P5GD1-VM upgrade

[pvarney]

Hello,
I have a computer that I purchased in 2005 and have couple of questions concerning upgrades.

Computer Info:
P5GD1-VM / P4 530 w/HT 3.0 GHz, 1 MB Cache, LGA755 Socket

2 sticks of Mushkin Enhanced Essentials 512MB 184-Pin DDR SDRAM DDR 400 (PC 3200)

nVidia 6600

Question 1: I would like to upgrade the memory with 2 1G sticks. ASUS only has one vendor listed as certified and I cannot find the product. Also, I would prefer to stick with the brand I have in the machine. Will this memory work? If not I will just go with the same in 512.
Mushkin Enhanced Essentials 2GB (2 x 1GB) 184-Pin DDR SDRAM DDR 400 (PC 3200) Dual Channel Kit

Question 2: Is upgrading the CPU to 64 bit going to buy me a lot? First I cannot find the recommended CPU. Second, Not sure if I would have the memory to support it and a new MB and CPU is a better investment.

Thanks in advance for your help, forums has to be one of the better things ever thought of.

Varno...

 

[mosox]

For under $150 you can get a new mobo/CPU and RAM.

BIOSTAR A880G+ AM3 + AMD Athlon II X2 245
http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.592413
G.SKILL Ripjaws Series 4GB
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231275

Or for a little more
BIOSTAR A880G+ AM3 + AMD Athlon II X3 450
http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.592419

$161.98

 

[pvarney]

Thanks a bunch mosox. I like this route much better just need someone to get me pointed the right direction.

 

[pvarney]

Best answer selected by pvarney.