Need a Bike...

I figured I’d post this here, seeing as the classified don’t look like they get too many bikes. I’m looking to get a dual sport, or some other cheap bike (250 ninja?). I’ve got to commute this summer from Lebo to Mckeesport to Oakland pretty much every day (and 18-20mpg in an evo doesn’t really cut it). I want to spend around 500 on it, as long as it’ll last me the summer. Any input/leads are welcome! Thanks guys!

Good luck on that, your best bet is craigslist if you want to spend no more than 500 bucks.