I wont be suggesting brand names here. I'll share my experience in buying a DSLR.
Every manufacturer will claim that they are the best...
This is an unavoidable fact, who wants to come second? So how am i suppose to choose. I went to various camera fairs, every promoter will come over and tell me that theirs is better.. blah blah blah... So...
1. Choose something that is suitable for you...Are you going pro or you just want to take better pictures? Are you gonna keep upgrading lens? If you're not going to do so, any DSLR will do, as long as it is friendly to your pocket. You might even want to consider semi-pro compact cameras rather then DSLR, if you're not going pro.
2. If you intend to go beyond shooting better pictures...
Find out how much lens or accessories will cost you. Some camera might be priced really cheap in a package, but you might have a hard time finding lens or maybe the lens are just very expensive.
3. Find a brand where there's a local service center...I guess i don't have to explain this. If anything goes wrong with you camera, least you don't have to drive half a state to get to the service center.
4. Make sure the DSLR or the Lens comes with Image Stabilizers...This is a very important feature to get good pictures at night or at slow shutter speed. Forget it if it doesn't comes with Image Stabilizers, unless you've got a really steady hands (quite impossible lol...)
5. Since you're reading this post, you're likely a beginner...Well obviously don't go for something beyond your budget. Don't worry much about the megapixels, anything around 10 is good enough, no point being kiasu by getting the highest Megapixels and burn a hole in your pocket. My camera currently shoots at 10mega pixel, and it consumes about 9mb of your hard disk space per-image. Think about it. Start off with an entry level camera, don't worry about picture quality as it's all about the settings. When you're really good at it, then upgrade. It's always an advantage to have two DSLR, one for a shorter lens, while the other for telephoto.
For all the rest of the "pros" who is reading this post, do comment on it...