dude you don't want a tower case. there huge and heavy! I have a mid-tower case and its fine for all the stuff i have. But on-topic that system looks sweet man!
http://forum.mtasa.com/viewtopic.php?f=87&t=20946 in here there is a fix to have both DM and Race installed without reinstalling all the time, I have tested it and it works, make sure you copy your SA directory somewhere else so you run DM from 1 and Race from the other.
[MA]MaggotCorpse wrote:MTA:DM is failing for me, whenever i connect it sez downloading sum shit then it crashes to menu, then sez error again :'( and on some servers it just black screen then goes to menu any suggestions any help guys?
im getting the same thing, guess we have to wait for a fix.
it also might be that your firewall is blocking the program, port-forward the MTA ports or disable it for a bit and see if you can get the server list.