You didn't mention what you are willing to pay. I'd bump the memory up 512 anyway. If you need to cut costs anywhere, hard drive size might be the best place. 80 gigs puts on lots of stuff. An external drive for storage might not be a bad idea if the drive starts to fill more quickly than expected.
I would like to buy my girlfriend a laptop but i don't know where to start I have my knowledge on computer and computer systems but I would like the opinion of a few fellow "techies" I dont think she will be video editing (Adobe Premiere) on her machine but she will be editing images and she wil l also be playing modern games (such as The Sims 2) so the graphics has to be suffcieent.
She will be watching DVD's on her machine and from time to time modify the DVD the hard disk drive can be under 80GB but the DVD needs to be DVDRW/CDRW and memory can be 256MB DDR anyway i hope that helps you.