Anyone know where i can get hold of a workshop manual for the lexus rx 300?

Thanks
Rob

If you mean something like Haynes then you are out of luck. They don't do them.
Some CD based ones on Ebay but don't know how reliable they are.

I got mine here. Not as good as a UK one but does the job.

http://www.haynes.co.uk/webapp/wcs/stores/..._category=10001