I bought a Yaesu Aviator Pro at a pilot shop at Bankstown, Sydney last year. Paid around A$450 for it (~£150, half the price of anything in the UK). Seems good quality and very small. Only tested the transmitter once (at Bankstown) by calling up for a radio check using the callsign of an aircraft I knew to be on the ground, but the receiver part comes in handy in Derby where I can just pick up E. Mids ATIS 8 nm away. Came with a NiCad battery, but sure they'll come with a NiMH option now. Check mail order.