I can only do the Saurday night. My plan is to catch the bus up Saturday morning (Megabus are only 1 pound) and hit The Cavern, stay up all night (God bless speed!) then catch the bus back Sunday morning. The only one night accomodation available is shared hostels and d rather stay up all night than listen to a bunch of snoring backpackers.
Al - I need to know what's best to do. I missed The Adelphi party last year because I didn't have a ticket. If that's where you're going to be I'll score a ticket now. (and what time did it finish - I know the cavern stayed open until 700am)