First homebuilt PC

[Itzviral]

Hey Guys. With my new Christmas money, i plan on seriously upgrading my computer:

I plan on reusing my:
Two 320 GB, 7200 RPM, SATA II hard drives (640 GB drive space)
Case
ATI Radeon HD 4850 graphics card
Monitors


And Plan on Buying:
Intel Core i5-750 Lynnfield 2.66GHz 8MB L3 Cache LGA 1156 95W Quad-Core Processor - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115215&cm_re=core_i5_750-_-19-115-215-_-Product

ASUS P7P55D EVO LGA 1156 Intel P55 ATX Intel Motherboard - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131407&cm_re=p7p55d-_-13-131-407-_-Product

CORSAIR XMS3 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMX4GX3M2A1600C9 - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145260

I dont plan on overclocking just yet, so the extra cooling equipment shouldnt be necessary. I DO need to buy a new PSU, but i do not know what kind of wattage i will need for this build. Can you please recommend one?

And also, will all of these items work together? Will my old graphics card and Hard drives work with my new mobo, And will the new mobo/cpu/ram work together?

Thanks so much guys.

Edit: Also, is there any parts i forgot?

 

[jedimasterben]

Well, you've got your CPU, mobo, GPU, RAM, PSU, HDD, case, and monitors. I'm assuming that you don't need a mouse, keyboard, speakers, or a disc drive.

Yes, those parts are all very compatible, although you could even choose DDR3 1333, as there is no real world benefit to faster RAM. That would save you a few bucks.

As for a power supply, with your current load, with no overclocking, it would pull around 375w. I'd go with at least a 450, and with overclocking and a new graphics card down the road, maybe a 550-600w model. As for brand, Corsair, PC Power and Cooling, OCZ, Antec are all good choices. Check out this tiered listing of power supply brands, in order of quality: http://www.eggxpert.com/forums/thread/323050.aspx

 

[jsc]

One of these would work:
Corsair 400CX (30 amp 12 volt rail)
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139008

But I would get one of these:
Corsair 550VX (40 amp 12 volt rail)
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139004