How good is this computer?

My mother is waffling about buying a computer from Officeworks and wanted to know how good a deal this was.

Price is $497 and it is (reading from the ad)

an EL 1 1850 Desktop PC and 18.5 LCD Monitor

with

2GB RAM
320GB HDD
2.2 GHz processor

I told her to ask whether one could play World of Warcraft on it and if so, then it would be fine. She considered this less than helpful, so I am appealing to my flist!

Thanks!