Concerned with heat i5/i7 build

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite... Combo Discount: -$10.00 Combo Price: $89.98
COOLER MASTER RC-690-KKN1-GP Black SECC/ ABS ATX Mid Tower Computer Case - Retail
COOLER MASTER Intel Core i5 & Intel Core i7 compatible RR-B10-212P-GP 120mm "heatpipe direct contact" Long life sleeve CPU - Retail

http://www.newegg.com/Product/Product.aspx?Item=N82E168... $15.84
COOLER MASTER R4-S2S-124K-GP 120mm Case Fan - Retail

http://www.zipzoomfly.com/jsp/ProductDetail.jsp?Product... $99.99 Free Shipping
PC Power and Cooling SILENCER 750W QUAD S75CF Power Supply Retail

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite... Combo Discount: -$30.00 Combo Price: $339.98 Free Shipping*
ASUS P7P55D PRO LGA 1156 Intel P55 ATX Intel Motherboard - Retail
Intel Core i5-750 Lynnfield 2.66GHz LGA 1156 95W Quad-Core Processor Model BX80605I5750 - Retail

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite... Combo Discount: -$25.00 Combo Price: $234.98 $10.00 Mail-In Rebate
Price After Mail-In Rebate(s): $224.98 Free Shipping
G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL7D-4GBRH - Retail
MSI N260GTX-T2D896-OCv3 GeForce GTX 260 896MB DDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail
Twin Frozr cooling overclocked at 655MHz

http://www.newegg.com/Product/Product.aspx?Item=N82E168... $49.99 Free Shipping*
SAMSUNG Spinpoint F3 HD502HJ 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive - OEM

http://www.newegg.com/Product/Product.aspx?Item=N82E168... $27.99
SAMSUNG Black 22X DVD+R 8X DVD+RW 16X DVD-ROM 48X CD-ROM 2MB Cache SATA DVD Burner - OEM

Total: $858.75 | $848.75 w/mail in rebate

http://www.newegg.com/Product/Product.aspx?Item=N82E168... $79.99 Free Shipping*
SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive - OEM

From a cooling point of view, you could use any of the three, and performance would be comparable.
Since the i5-750 is the cheapest, and you are on a budget, Go that route.
Add in any of the top 10 oem coolers, and you will get adequate cooling. along with reduced noise.
http://www.frozencpu.com/resource/r24/Best_CPU_Cooler_P...

With the launch of the 5870 you have a vga card that can run anything out there well with a single card, even at a higher resolution.
No need to plan for crossfire as an upgrade. You only need a psu with two 6 pin pci-e connectors, which will be about 550-650 watts. Look for a unit from corsair or PC P&C. Such a psu will not use any more power than it needs, and since they are relatively efficient, you will not generate much heat or noise.

What is your ambient temperature since you are so concerned about heat.

Why_me suggested a decent build.

You do want adequate cooling, but the cooling of the PC is not going to change the heat generated. Even if it's water-cooled, the total heat of the system will not change.

The only change you can make is the efficiency of the parts. A very efficient PSU will help. The GTX 260 is a fairly efficient GPU and so a good choice.

I think a nice efficient Antec PSU might be the better choice here though.
http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

Don't OC beyond the stock voltage if you are trying to keep the room cool.

Thanks for the replies, my house is usually cooled to around 76F, we don't keep it too low so heat generated from the computer is fairly noticeable after long hours of operation. The build seems reasonable to me, I will probably gather most of the parts together and wait and see where the dust settles with the latest gpu announcements.

To Proximon:
Thank you, good information to know, I haven't found much regarding this topic. A friend was telling me mainly the cpu and gpu would be generating heat but I wanted to know more about that.