I have to chime in here because I have used a Sony a200 for almost a year now. Let me tell you, for an entry level camera, you cannot get more for your money. I'll take the pepsi challenge any day of the week with a D60/80, XTi/XSi, or any other entry/mid level camera. It's not the camera guys, its the photographer, as all three companies, Sony, Nikon, and Canon, make entry level cameras capable of amazing photographs.
I went with Sony first of all because it felt right in my hands. I have very large hands and the D60 felt like a midget camera in my hands. The XTi body felt cheap. Next, the control layout is freakin awesome on the Sony. After learning the controls, the buttons are positioned as such that you can fly through the settings, the XTi was second, and D60 third for me. Lastly, at the time I purchased the camera, the D60 was 749.99, the XTi was 649.99, and the a200 was 539.99. This was an absolute no brainer for me. Remember that this paragraph was entirely my opinion and why I chose Sony, not trying to bash Canon or Nikon.
Okay, as for the review... This camera has so many pros, that I really can't list them all. I have the kit lens, 17-70mm, and I have a tamron 18-200 (which is a freakin sweet walking lense.) Here are two pro's that I really thought Sony went all out on, first of all, BATTERY LIFE... Battery life is awesome on this camera. Next, the BATTERY PERCENTAGE METER, why haven't other electronic devices utilized this. The camera gives you an exact percentage of battery life left, and it's accurate and handy. Oh and lastly, the in-camera stabilizer is nice as you don't have to worry about lense's having it
Now for the cons: There is one major flaw with this camera. At high iso, there is a ton of noise. I would say that photos at 1600 iso are simply unusable without noise reduction software, and even then, its bad. While this would seem to really hamper the camera's performance in low light, you can overcome it and here's how. In low light, shoot at 800 at a little longer exposure. This can be done by hand and bracing the camera or with a tripod. I shot the inside of Alcatraz at iso 800 and given the great stabilizer in the camera, I was able to get some amazing photos. The built in stabilization really helps with camera shake during longer exposures.
One other minor annoyance, the usb input is on the inside of the trap door for the flash card. This means that you have to leave the door open while connected to it and downloading photos. This leaves you at the risk of breaking the door off, soooooo, do what I did and buy a USB flash card reader if you don't already have one
Now, I don't want to get off on a rant...LOL... You will love your a200, and if you have any questions on it, feel free to P.M. me and I'll try to answer them for you. So good luck, get out there and take some photos and tell us what you think...