What should I do to cool two 4890's?

[Trojan94]

I'm gonna make a gaming rig with two 4890's in crossfire but I heard they go up to 90 C on load so what can I do to keep them cool? I'm gonna get the MMSI R4890 Cyclone so will it stay cool? like temps will always stay stable at load? have any of you used it, in crossfire? because if too hot card are right next to each other they will get hotter, right?
What can I do so that they always stay cool?
Here's the config of my rig:

MSI R4890 Cyclone OC Radeon HD 4890 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card

$420

FSP Group Everest 800 800W ATX12V V2.2/EPS V2.91 SLI Ready CrossFire Ready Modular Active PFC Power Supply

$156

CORSAIR XMS3 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model TR3X6G1600C8 G

$114.99

Pioneer CD/DVD Writer Beige IDE Model DVR-A18M LabelFlash Support:

$47

SAMSUNG Spinpoint F1 HD103UJ 1TB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive

$84.99

Cooler Master HAF 932 Full Tower Black Case

$140

COOLER MASTER V8 RR-UV8-XBU1-GP 120mm Rifle CPU Cooler

$59.99

ASUS M4A79T Deluxe AM3 DDR3 AMD 790FX ATX AMD Motherboard

$189.99

AMD Phenom II X4 955 Black Edition Deneb 3.2GHz Socket AM3 125W Quad-Core Processor

$210.00

LG W2353V-PF Black 23" 2ms(GTG) HDMI Full HD 1080P Widescreen LCD Monitor

$220

 

[Helloworld_98]

1) you've got an IDE DVD drive not a SATA one.

2) get the Corsair 850TX or HX instead of that PSU as it will be higher quality.

3) the stock cooling is fine for 4890's, you don't need any aftermarket coolers, especially with the case you choose.

 

[Trojan94]

whats IDE? please suggest a DVD drive thats SATA and has all those features

 

[Trojan94]

are you sure
i need more opinions

 

[Trojan94]

also what's cold boot issue? i heard the asus 790FX mobo and the 4890's have them..it sounds pretty serious so how can I avoid them?

 

[Helloworld_98]

IDE is the interface, it has been replaced by SATA.

 

[Trojan94]

dude! help me with the cold boot issue! I know nothing about these things

 

[Trojan94]

@helloworld_98 dude whats cold boot issue?
and I saw in many benchmark results that two 4890's are better than one gtx 295 but by only a few frame rates, so should I buy the gtx 295 and start saving up so that I can buy another one in SLi or should I go with the 4890's (two 4890's cost $400,one 295 costs $500)

 

[Helloworld_98]

one 4890, then a 5870 later,

the cold boot issue is hard to explain, it'll be easier for you if you search about it.

 

[Trojan94]

wens the 5870 coming out?