Tiger Woods 2004 demo
One of the current BGEs (Best Game Ever) at my household, Tiger Woods PGA Tour 2004 may not be exactly the same on the PC as it is on consoles (believe it or not, having those analogue sticks around makes a huge difference), but it's still pretty close to the same game, and now EA has released a 99MB three-hole demo you can see that for yourself. Here's a direct link to the file.
It's also the only Tiger where you can play online, after the PS2 version appeared with no PS2 Online support. In good news for Tiger fans though, it looks like Links 2004 will do much of the same stuff, supports Xbox Live, and should be out before Christmas. Phew.