If you have been thinking about making a political contribution, today's a good day to do it, because today is the quarterly filing deadline for candidates' financial reports. That means a donation today will go a lot further than a donation tomorrow. It's easy to get busy and forget (or not care) about "politics", but it really is important, so take a few minutes today if you can.
If you're not sure who to support, this is a good time to do some research and get involved! You can see what all the major politicians say about the issues online - http://www.ontheissues.org is a neutral source that will explain what all the major candidates stand for, in their own words.
What's important isn't who you support, but just that you get involved. If you think Bush is great, well, get out there and support him. If you think he's terrible, you owe it to yourself to get out there and help somebody oust him.
(My own plug: I'm steadily getting to be a bigger fan of Dr. Howard Dean, the former Governor of Vermont. He's fiscally conservative but socially liberal, and is big on universal health care and increased international cooperation as a solution to the situations in Iraq and elsewhere. I've heard him speak, and everything he says seems pretty right on to me. There are even lots of Republicans who are starting to support Dean out of frustration with what Bush is doing. If you want to learn more, check out http://www.deanforamerica.com.)
Anyway, the important thing is, get out there and decide for yourself! :)