Need final compatibility confirmation for 1st PC build!

Ok. I have everything listed below in my Newegg shopping cart and I'm just about ready to checkout. The 550w Corsair is sold out at Newegg and more expensive everywhere else.

I think I'm good with everything except the case - some of the suggestions only had 1 fan, and I thought that might not be best even though I don't plan to do any overclocking. I like the look of the one below and the fact that it's supposedly a tool less assembly. However, it apparently has no removeable motherboard tray, and I don't know if that's a big deal. Again, I'm not planning on doing any mods or upgrades for a while. A final compatibility blessing or tell me if the case is bad please!

Optical

Sony Optiarc 24X DVD/CD Rewritable Drive Black SATA Model AD-7240S-0B - OEM

Case

COOLER MASTER Centurion 5 CAC-T05-WW Black/Silver Aluminum Bezel, SECC Chassis ATX Mid Tower Computer Case - Retail

HDD

Western Digital Caviar Black WD5001AALS 500GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive

PSU

OCZ ModXStream Pro OCZ600MXSP 600W ATX12V V2.2 / EPS12V SLI Certified CrossFire Ready 80 PLUS Certified Modular Active PFC ... - Retail

GPU

SAPPHIRE Vapor-X 100269VXLE Radeon HD 4890 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail

CPU

Intel Core i5-750 Lynnfield 2.66GHz LGA 1156 95W Quad-Core Processor Model BX80605I5750 - Retail

Motherboard

ASRock P55 Pro LGA 1156 Intel P55 ATX Intel Motherboard - Retail

RAM

G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Dual Channel Kit Desktop Memory Model F3-10600CL8D-4GBHK - Retail

Total is $834.62 with $40 in mail in rebates so I am under my $800 goal![/quote]

Edit:

I'm a little indecisive on the case. Looking at (but will consider other options < $65)

Antec 300

COOLER MASTER Centurion 5 CAC-T05-WW

COOLER MASTER Centurion 5 CAC-T05-UW

NZXT BETA EVO

Thanks for the reply. Are you saying I need that case for space or cooling reasons? Or both?

Is there a difference between that case and the regular Antec 300 other than appearance?