New Computer Need Help?

Sir'
i have bought a pc with

pentium4 2.80ghz
ram 512
80gb hdd
video memory 32mb
CDRW 52X speed
3And half inch fdd
4 ports of usb

i want to have the recommended software for a standers home use.
like cd writing , playing games , viewing movies .

and also anti virus soft
achievers

please tell me the freeware softs for above all

is there any way to add more vedio memory to my pc