Hi Rockwall. I have an 03 Limited as well. Purchased it 'certified' used from a dealer with 37k on it in April 06. Over 2 years later, 68k and nothing but regular service. I have been doing my own oil service, etc, and going to the dealer every 10k miles for a look over and recommended services like fluid flushes, driveline service, etc). I have had no major issues.
I did have the driver's seat squeak, but was able to diligently shove a WD40 can w/nozzle down into the tracks, seat bolts, seatbelt bolts, etc, and that stopped all noise.
I also had a CD changer meltdown where the player would jam and not load my CDs (error 3). Many hours of troubleshooting later, and following some great posts here on the forum, I purchased an 05 JBL radio from eBay for about $130 and swapped it out... no troubles.
I have owned a few other Toyota and Lexus vehicles and have always had great luck. I did have a 91 LS400 that started to get costly to maintain after around 90,000 miles... but that was traded in for a VW. the VW after 40,000 was about as expensive to maintain as the Lex at 90.
