Many thanks for all the replies
I'm a tad confused regarding the inability to burn DVDs on the cheaper MacBook. Maybe I didn't pay enough attention to the salesman, but I thought that was OK - I just couldn't direct copy them. I've got twin drives on my home PC so I can copy discs on there as necessary, but I would need the facility to burn disks on the laptop from its hard drive. Am I being a MacDummy already?
I hardly ever play games on a PC, so that's not an issue. I suppose the only other thing I need to decide is whether I need Office For Mac or whether I can get by with Neooffice.
I think I need a personal sticky for all the useful Mac utilities with such unfamiliar names!