I recently purchased a 2000 GMC Sierra SLT Ext. Cab from my local dealership and I couldn't be happier. All I've ever bought before were new vehicles, but I couldn't pass up this truck when I saw it. I found a fully loaded GMC, (leather, heated seats, overhead console, fog lights, seat memory position, 5.3L V8 engine) with almost 24,000 miles on it for less than $21,000. I drove off the lot for about $24,000, including ext. warranty. The vehicle was certified.