RHD LX470s are available in the land down under for $123,000 (that's about £49,400) - there's a link to the Oz Lexus site here!
For comparison, the SC430 (the only one on the site that's easily compared to the UK ones as all the other ones have different spec levels) is $161,600 (just under £65,000) over there, £54,778 over here - and we thought we were getting ripped off! :o
(further comparison, the SC in the USA is $66,170 or £33,912, the LX470 with all the toys will set you back $75,513 or $38,700).