yep im with djmatt and he knows his impys....the one he had is the BOMB!
they are so much easier to use than what you have now, much faster and dead easy to maintain (even i can do it)
there are of course other markers out there, £100 seems to buy a lot of automag these days and £200 will buy a right feed cocker in good shape
your best bet is to play a walkon at say planet or sparkies and ask people if you can have a blast on their marker....99% of people will be more than happy to let you and to talk guns for 5 mins. see what takes your fancy. the classifieds on here is a great place to pick up a 2nd hand marker, also keep an eye on ebay. i met a guy last week payed 70 quid for an automag, bloody bargin!