Cheers for the info so far guys.
In reply to the 1 hour of circuits costing a ****load in the PA28, well I'm almost ready for my AREA solo so I assure you nuffin' will be wasted on going round in rectangles for 60 minutes.
Also, back in the day, I did my TIF in a Warrior and the only reason I'm a 152 guy these days is of course due to the Moolah$$$ involved. So yeah after I'm done with the GFPT I'll definitely put some thought into making the switch.
Once again thanks peeps for ya help!