astaut wrote:
I bought a DSLR camera because I thought I was going to be making a trip to Costa Rica. It's a Sony a200 and right now I only have a 18-70mm (sony) lens. I'm disappointed though, because my pictures aren't as good as I thought they would be plus I can't figure out how to get the pictures onto the computer. (There's no simple USB port on the camera.) I want to be able to take pictures really fast, like of my horse running, but they are still blurry

I bought this camera to use for fast shots cause my old Canon digital camera couldn't take moving shots.
Your camera will do everything you want it to do! Taking photos of a fast moving horse isnt a problem. The thing is, getting your first SLR, learning how to use all the seting and when to use them, it can be a steep learning curve.
I suggest for starters, you read the camera manual from the cover to the last page, then read it a few more times as you learn how to set everything.
It should at least explain how to download your photos to your computer.
To learn the basics of photography, using your camera, get yourself a book for your camera. I recommend this,
http://www.amazon.com/Sony-Focal-Digita ... 0240811100
Once you learn the basics, how to set your ISO, shutter speed, aperature, etc, you shouldnt have any trouble taking pictures of your horse.