Replacing my junker

I've been out of the loop for a while and I'm kind of lost with all the new products and such. I have a really old system (running a 3200+, 1GB OCZ Platinum, 500w Ultra, A8V-E Deluxe, etc), and it struggles with my huge 27" monitor. I refuse to play on anything other than the native 1920x1200 res, but even games like WoW only pull 30-40 FPS.

I'm looking to build a new system that can handle the new expansion (which introduces dynamic shadows, destroys my FPS on this machine), preferably 75+ FPS in graphic intensive zones. I'm willing to spend whatever I need to, but I don't want to overspend and I'm not shooting for the moon here. If I can do this for $500, then $500 it is! The only thing I want to make sure is that it runs cool, runs smooth, and that triple-boxing in windowed mode is at least doable. I'd also love to cut down the size of my rig, this thing weighs like 20 pounds and I lug it over to my friends every weekend, along with the 27" monitor it's a huge pain in the ass. Is it possible to make a MicroATX system like this still? Last thing, I might be installing Vista on a second partition some time, so I'd like to have 4GB of memory as opposed to 2

TLDR recap:

- Need new system that handles new WoW expansion and pulls moderately high FPS consistently.
- Keep price down as much as possible.
- MicroATX would be awesome if it's at all possible!
- 4GB of memory.

Anyways, off to hunt for parts, I'm open to any suggestions! Thanks.

AeroCool M40-BK Black 0.6 SECC Steel MicroATX Cube case
I dont know much about MATX cases, but I believe this is what you are looking for, it's compact and easy to take over to your friend. $89

CORSAIR CMPSU-650TX 650W ATX12V
Good PSU $80 after rebate ($100 before)

mushkin 4GB (2 x 2GB) 240-Pin DDR2 800 (PC2 6400)
Not much choice lately for memory, this one wins hands down. $47 after rebates ($67 with)

Intel C2D E8400
Pretty much best bang for buck. $

ASUS EAH4870/HTDI/1G Radeon HD 4870 1GB 256-bit GDDR5 PCI Express 2.0 x16 $269 after rebate ($289 before)

Western Digital Caviar SE16 WD6400AAKS 640GB 7200 RPM 16MB Cache
$75

SAMSUNG Black 22X DVD+R 22X DVD-R 16X DVD-ROM 2MB Cache SATA 22X

TOTAL = $900 after rebates ($962 before)

Here are my recomendations:

COOLER MASTER Centurion 541 RC-541-SKN1 Black Aluminum bezel, SECC chassis MicroATX Mini Tower Computer Case
http://www.newegg.com/Product/Prod [...] 6811119088
with combo
COOLER MASTER Centurion 541 RC-541-SKN1 Black Aluminum bezel, SECC chassis MicroATX Mini Tower Computer Case
http://www.newegg.com/Product/Prod [...] 6817171016

$94.98

Intel Core 2 Duo E7200 Wolfdale 2.53GHz 3MB L2 Cache LGA 775 65W Dual-Core Processor
http://www.newegg.com/Product/Prod [...] 6819115052
$117.99

ASUS P5Q-EM LGA 775 Intel G45 HDMI Micro ATX Intel Motherboard
http://www.newegg.com/Product/Prod [...] 813131336R
$95.25

SAPPHIRE 100245L Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card
http://www.newegg.com/Product/Prod [...] 6814102770
with combo
OCZ Platinum 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory
http://www.newegg.com/Product/Prod [...] 6820227298

$227.98


or you can opt to combo OCZ Reaper HPC Edition 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Retail with the video card http://www.newegg.com/Product/Prod [...] 6820227284
and save $8.99($3.99after rebates) but the motherboard allows you to overclock the ram to 1066 so your best bet is the OCZ Platinum 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500)

The total here comes to $536.20
-$50.00 in rebates
Total: $486.20

The Hard drive and dvd rom together should run sub $100 and you can choose based on your storage and media needs.

You could also just get this below and just get a regular case and make your lugging around a bit easier!!

Link where this is listed. I'm sure it can be found for less, but haven't looked into it
Does either type of case interest you?? The X-pack cases above have handles on them, so it makes it easier to tote them around.
A friend of mine uses a case very similar to the one below. He totes it back and forth to work every day and has been doing it for 2+ years. The handle is very helpful!

+1 for Corsair 650TX, ATI 4850 (or better), 4GB DDR2 800 RAM, E7200(if OCing quite a bit, else E8400 if Ocing more ) and the WD 640GB AAKS. For HSF a XIGMATEK S1283 (+ bolt in kit) or Core Contact. As for case Antec 900 (or 1200) FTW! (Personal preference here, just get a good case with good airflow/layout/size)