I love the concept and want to participate...
While it's significantly more difficult than simply throwing money at it, you might look into ways you could sell items or services of some form and accept payment in bitcoin. That way you can get your hands on some bitcoins without spending a lot of cash, just some time and effort. This is also probably the single most important method of supporting the concept, since merchants are what bitcoin needs to ultimately be valuable as something more than a hedge investment.
That's an idea, although right now I'm a student and don't have a lot of "services" to offer. Also, I haven't even made a single transaction yet and I'm not familiar with some of the more practical aspects involved, e.g. how long do transactions realistically take, how to manage multiple wallet files and addresses, etc.
On that note, maybe someone could send me something paltry so I can at least get my feet wet and make some transactions? I got excited when I came across the bitcoin faucet but it's out of commission right now. I'll send it right back if you want (muhaha).