Building new gaming PC. Need advice.

[ifyouseekay]

APPROXIMATE PURCHASE DATE: This week. BUDGET RANGE: Up to $1200 Canadian

SYSTEM USAGE FROM MOST TO LEAST IMPORTANT: Gaming, surfing, watching movies

PARTS NOT REQUIRED: Keyboard, mouse, monitor, speakers, OS

PREFERRED WEBSITE(S) FOR PARTS: www.newegg.ca or www.tigerdirect.ca COUNTRY OF ORIGIN: Canada

PARTS PREFERENCES: I'd like to use an i-7 core for longetivity and overclocking.

OVERCLOCKING: Yes. SLI OR CROSSFIRE: No

MONITOR RESOLUTION: 1440x900

ADDITIONAL COMMENTS: This is my first time building a system and I'm hoping it will be good for another 3 years at least. Will my mobo + PSU work together? I've noticed that the hard drive I've chosen has a lot of capacity for its price. Is it going to be an incredibly slow hard drive? The video card looks pretty cheap, is it not a very good one? Is my PSU overkill? Is it necesary to have such an expensive case or should I drop down $50 there? I'm paranoid about overheating issues I've had in the past so if it's a risk to use a cheap case, I'm willing to buy a good one. If anything I've chosen is a bad deal and there's something better you would suggest, lemme know!


Intel Core i7-860 Lynnfield 2.8GHz 8MB L3 Cache LGA 1156 95W Quad-Core Processor - Retail
http://www.newegg.ca/Product/Product.aspx?Item=N82E16819115214

ASUS P7P55D PRO LGA 1156 Intel P55 ATX Intel Motherboard - Retail
http://www.newegg.ca/Product/Product.aspx?Item=N82E16813131405

SAPPHIRE 100283L Radeon HD 5770 (Juniper XT) 1GB 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card - Retail
http://www.newegg.ca/Product/Product.aspx?Item=N82E16814102858

COOLER MASTER HAF 922 RC-922M-KKN1-GP Black Steel + Plastic and Mesh Bezel ATX Mid Tower Computer Case - Retail
http://www.newegg.ca/Product/Product.aspx?Item=N82E16811119197

CORSAIR CMPSU-750TX 750W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 Power Supply - Retail
http://www.newegg.ca/Product/Product.aspx?Item=N82E16817139006

SAMSUNG Spinpoint F3 HD502HJ 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
http://www.newegg.ca/Product/Product.aspx?Item=N82E16822152181

CORSAIR XMS3 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMX4GX3M2A1600C8 - Retail
http://www.newegg.ca/Product/Product.aspx?Item=N82E16820145263

COOLER MASTER Hyper 212 Plus Intel Core i5 & Intel Core i7 compatible RR-B10-212P-G1 120mm "heatpipe direct contact" Long life sleeve CPU Cooler - Retail
http://www.newegg.ca/Product/Product.aspx?Item=N82E16835103065

Sony Optiarc Black 24X DVD+R 8X DVD+RW 12X DVD+R DL 24X DVD-R 6X DVD-RW 12X DVD-RAM 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM 2MB Cache SATA DVD/CD Rewritable Drive - OEM
http://www.newegg.ca/Product/Product.aspx?Item=N82E16827118030

Cooler Master Thermal Compound
http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=3071621&sku=C283-1147

 

[Silvune]

I would say that an overclocked i5 750 will be good for 3 years, however a 5770 is much less likely to be. Based on this I think it would be a much better idea to save $90 on the CPU and get the i5 750 and plough that money back into getting a 5850.
That board is perfect for crossfiring and along with that PSU it is on the starting line ready to go. If you aren't going to crossfire then yes at least change the PSU to a good 600-650W. You could also change the motherboard. But I don't know if there is a cheaper one that is as good an overclocker.
And finally, the Samsung Spinpoint F3 is one of the best harddrives on the market at the moment.

 

[ifyouseekay]

I don't really mind buying a new GPU in the future. I've done it quite a few times and it's pretty simple.

Replacing the processor is a lot more of a hassle it seems though, so I'd definitely like to get that one done correctly the first time. Plus I hear that the i7 just overclocks SO much better than the i5.

Is there a cheaper PSU anyone would recommend that would suffice for my system without risks?

 

[ifyouseekay]

After noticing that I'm over my budget once tax and shipping is included, I've downgraded my PSU and case.

COOLER MASTER Elite RC-332-KKN1-GP Black SECC ATX Mid Tower Computer Case - Retail
http://www.newegg.ca/Product/Product.aspx?Item=N82E16811119189

COOLER MASTER Silent Pro 600 RS-600-AMBA-D3 600W ATX12V V2.3 SLI Certified CrossFire Ready 80 PLUS Certified Modular Active PFC Power Supply - Retail
http://www.newegg.ca/Product/Product.aspx?Item=N82E16817171036


Would those suffice? Or is the 600w too little?

EDIT: also swapped my motherboard

GIGABYTE GA-P55-UD3L LGA 1156 Intel P55 ATX Intel Motherboard - Retail
http://www.newegg.ca/Product/Product.aspx?Item=N82E16813128406