This is a newly proposed work PC. Please note that the budget is quite tight (+-R3,000). 
Motherboard:
CPU:
HDD:
Any comments on what could be improved? Also, is a 300W PSU enough? I think it seems a little on the low side.
Thanks.
Motherboard:
MB-AM2NVMD Asus M2N-VM Dvi , all-in-one ; socket AM2 , nvidia GeForce7050PV + nForce630a chipset , 2x dual channel DDR2-800/667/533 , 4 x s-ata with raid 0/1/5/0+1/10 , 1 x parallel ata133 , on-board vga with dual-output ( DVi-D or D-SUB / HDCP compliant ) + realtek ALC662 5.1 audio with + gigabit lan ; 1x pci-e (1x) , 1x pci-e (16x) , 2 x pci - micro atx
CPU:
RAM x 2:CP-AAD52 Amd socket AM2 athlon64 x2 Dual core 5200+ (2600mhz) , dual core - 2 x 128k L1 + 2 x 1mb L2 ; 65nm , 65w , 2000mhz HT2.0 link x 1 - 8Gb/sec , memory bandwidth - 12.8gb/sec , with PVT - box cpu
ME-C1GD2X8 Corsair CM2X1024-6400 - XMS2 , with heatsink , 1Gb/1024mb , ddr2-800 ( pc2-6400 ) , CL5 , 1.8v - 240pin - lifetime warranty
HDD:
Case/PSU:HD-S250S16 seagate barracuda 7200.10 st3250620/410as , 250gb, s-ata2 , 7200rpm, 16mb cache, 8.5/10ms - 5 years warrenty
CH-ATA861 ASUS TA-861 vento A8 midi tower , black , 300w , 8cm side venting area , 2x front usb + audio in/out ; 1 x 80mm fan upto 5 , 4x 5.25", 2x 3.5", 4x internal 3.5" , screwless design for side panel and drive - 1 year warranty on psu
Any comments on what could be improved? Also, is a 300W PSU enough? I think it seems a little on the low side.
Thanks.