I work for a small non-profit organization (it's an animal shelter). We have about 50 desktop PCs all running Windows XP Pro. Most of the machines are used mainly for accessing web-based apps, with maybe a little bit of word processing thrown in. Some of the computers are seven or eight years old. They're slow, and I just had a hard drive fail a couple of months ago.
I want to upgrade the ten oldest machines, but the budget is really tight right now. Donations are down, the endowment is doing poorly, etc. I'm getting pressured to pinch pennies.
What would people recommend for a low-end, inexpensive desktop system that would run Windows 7? (I don't care about Aero.) Hopefully, the PCs would have a useful lifespan of at least four years.
I'm not necessarily looking for a recommendation for a specific vendor (although that would be nice). Even just basic specs would be helpful so that I can get price quotes.
Thanks in advance.