Thanks Steve - not put off at all.
So far, through direct advice or links from the pages of the forum I have: Fixed my dasboard lights for £1.56, Fixed the CD Multichanger - for nothing, Fixed the rear window - for nothing, cured the damp boot - for nothing and been able to service the front and rear brakes. All without needing to visit a Lexus dealer. Based on the dealer prices some of the members have mentioned I have 'saved' myself over £1000 already - and have a damn nice car to drive :) .
Mick