For the price range you are mentioning your best bet would be a Springfield XD. It comes in 9mm, .40 cal, .357 SIG and later ths year in .45 GAP.
They come in Compact (3 inch), Duty (4 inch) and Tactical (5 imch).
I own the Tactical 9mm myself and LOVE this gun. Its not great for ccw due to the length of the slide, but I shoot it at local matches. This is one GREAT shooting pistol, and has won over MANY Glock fans. Just take a look around at even some of the threads here.
I paid 450.00 for mine brand spanking new in the box. I have got around 1.5 K rounds thru it in a 7 or 8 week time frame without a single hiccup or malfunction. And with the inexpensive prices of 9mm practice ammo its a GREAT range gun. I also like the idea of the Lifetime Warranty.
If you want something a little bit less expensive than that try any one of the Ruger 9mm series... also great range guns.
As are the Taurus 92/99 series (based on the Beretta design). Not a great carry pistol due to its size and weight, but Taurus also has a lifetime warranty, and is less expensive than most others. Especailly used.
Of course the CHEAPEST pistol going is the Hipoint. Usually priced at less than 200.00, (but still has the lifetime warranty), its pretty much the cheapest thing going. But, like one person said, Hipoints are like FAT CHICKS... Lots of fun until your buddies see you with one. I have had occasion to shoot a Hipoint at the range. It shot well enuf for range purposes, and didnt give me any problems. Just WAY too big for ccw. But they do have kind of a cool space age look to them.
You may also want to consider the Walther P22. I have one, and once I figured out you need hi vel ammo for it to shoot properlyl, its a LOT of fun. Winchester Wildcat 22lr, and Federal Lightning lr, both can be had at wal-mart for less than 1$ a box. This nice little pistol can usually be had for just over $200.00.
Since you said it was not for carry purposes, and price was the primary concern, I belive any of these pistols would serve you well.