Excuse the garble in the previous post, I punched post too hastily, about to go to bed (it's 2 AM here).
Corrected version: By the way, if you edit using a MAC laptop or desktop monitor, you can use PAL without any problem.
A regular TV monitor needs to be PAL or NTSC or both, but the advantage of using digital video on a computer screen is that PAL or NTSC makes no difference. This is why you can play DVDs originating from video shot in either NTSC or PAL on any computer monitor.
I have edited several docs on a MAC laptop with a 17 inch screen, so – if you're trying to save money – I don't see why you couldn't do the same.