crammit442

I've been in a 3rd gen 4runner forever and have been looking for another, but haven't been finding what I'm looking for so far. I'm very familiar w/the 3rd gen/5VZFE and it's quirks. Ho does the Lexus GX470 ('04--'06) fare when it comes to common problems/maintenance cost? Would love to drive one, but don't want to buy something that has lots of common issues. What's considered high mileage for well maintained GX470'S? Anything in particular to look at or watch out for when buying? Thanks.
Charles