UPDATE: (didnt know that your budget was that tight...but here you go...with in budget) (bow)
my suggestion for a budget build:
mobo asrock h61hvgs......5500 iamextreme.com
pro intel g620..................5900
ram 4 gb ddr 3................1950 (gskill one stick instead of 2,,,from iamextreme)
hd maxtor 250 gb............3800 sata 2...
Online Shopping Pakistan - Karachi, Lahore, Faisalabad, Sialkot, Islamabad, Huge stock of Laptops,
dvd rw samsung..............1750 iamextreme.com
casing............................3000 instead of czone.com.pk. buy the same thing from media interntional, my friend just bought it cheaper a couple of days ago
ps 450w thermaltake.......3600 czone.com.pk
gpu 6790 his..................14500 galaxy.com.pk (want to save more money go for less powerful you can easily go for other cards as well)
total..........40000
(you can get the above a little cheaper if you bargain a bit as usual....also buy any dany or other chinese casing and save more money,,,i just suggested th ms 1 cause its upgradeable easily and looks good)
by the way the intel g620 is no slouch when it comes to gaming, here are some videos to prove it:
Call of Duty MW3 on Intel G620 + Radeon 6670 - YouTube
Crysis 2 on Intel Pentium G620 and Nvidia GT545 - YouTube
Dirt 3 on HD 6750 & Intel Pentium G620 MAXED OUT [Gameplay] - YouTube