Probably PAL resolution in the uk 720x576 I think form memory, although you could go for a widescreen format if you wanted to.

Also if your going to put this to DVD (which I assume as your asking for UK resolutions) Your going to be stuck wuth MPE2 coding (as thats what DVD's use, when your making the reel just keep everything to the highest quality possible (I would probably go with full DV streem as thats what I've found gives me the best results) untill you compress to DVD