Westfield strat: £50
BK Uber-sinner: £70
Watching peoples faces when your natural-finish white scratch plate cheapo fake strat makes their skull vibrate: Priceless.
My biggest bargain was probably a 70s yamaha SG200 (cheapo model, but it was good and mint) for £200. Sold with some EMGs and a couple more mods to a mate that was starting out, so I knew he had a good guitar, for 300. We both got a bargain, I think.
My DX1, RRP £950, was 500 new beacuse I got it just after they were discontinued (98, I believe) and the shop had stock to shift.
I came accross a G&L for 300 once, but alas didnt have the 300 at the time :(