Les isnt cheap, but the amount of big fish in there is pretty phenominal. Its also pretty much booked thru 2008, and as soon as the lines open for 2009, it'll be pretty much booked.
Try www.clearwaterlakes.com - loads of fish to mid fifties, large head of high twenties and thirties. We were there in April last year when weather conditions weren't great. Top rod for the week was 25 fish (in 5 days) from high teens to just over 40lb. None of the swims need a cast of more than about 70 yrds. Drive & survive with a bacon butty delivered to your bivvy every morning for ?280 - pukka! Going back next year.