If you do a search you will find loads of posts on groups. I thoroughly recommend a group round a PFA type, ours costs us 85 pounds/month + fuel and landing fees, that is for a 3,000 outlay and a 5 person group - even if we only fly 1 hour a month that is still almost the same as hiring a club aircraft - then we are flying for about 26/hour + landings! A largergroup would be even cheaper.