hi every one. this is my first post on digit forum.I am a mechanical engineer and want to assemble a pc for myself.My budget is Rs25000/-I want to use it for cad applications like autocad,proe,solidworks etc. all that i have decided is AMD Athlon 64 2800+754 pin,motherboard(one without integrated graphics),512MB kingston RAM,15"MOnitor,128(or more)MB AGP graphics card,(no modem,no optical drive, no floppy drive),big cabinet 400KW with two fans,500VA APC UPS,keyboard and mouse normal ones please suggest me the brands of motherboard and graphics card that will be best suited for me. please reply me soon as i will b buying it in next week only. thanks in advance.