Sniper Elite is worth a go imo. It has its foibles, but there's some really sweet moments if you take the time to set up a shot
using ambient sounds to hide your gunshots, distracting enemies and 'seven at one blow' moments.
If it's going cheap grab it.
Sniper: Ghost Warrior Demo out now.
http://www.techpowerup.com/downloads...rior_Demo.html
EDIT:
demo didn't work for me... missing DX .dll
downloaded d3dx9_39.dll and xapofx1_1.dll an put in games root directory and it worked, but without any sound.
apparently early versions of DX9c don't have certain .dll's and as the demo doesn't seem to install any dx components, go figure.
NOT a good start as far as I'm concerned... honestly, having to mod a demo to get it to work (I know that's stretching it a bit).
Looks like you'll have to make sure you have the latest release of DX9c, all 90-something mb of it, first.