Guys, hot pixels are digital camera reality.
Unless you start notice dead/stuck/hot pixels in normal photos (short exposures) don't worry about that. Turning noise reduction off and doing long exposures with lens cap on will definitely give you a lot of hot pixels. This will happen with all cameras. And the older camera will be the more such pixels you'll have.
When I bought my first DSLR (*ist DS) I also was worried about hot pixels did those long exposure lens-cap test and so on. Also was horrified by finding so much hot pixels. However those hot pixels didn't appear on regular photos, so I didn't send my camera for repair and happily used my camera for almost a year (until I upgraded to K10D) and haven't seen any of hot pixels in my regular pictures...
Don't be busy with measurbating and looking for problems with your camera. When you
really have a problem, you will notice it in regular pictures.
So, it's your choice: look for problems and send your camera for repair every month (new hot pixels definitely will appear again and again) or just use your camera without looking for problems all that time instead of being without camera for most of the time