I am looking for one of those big bikes... road, hybird, mtb

commute distant: 5 miles, 10 round trip

traffic: road, a little sidewalk, not much hill, a handfull of traffic light.

security: community bike rack at work and home.

spend: $300 (about)

I know this price is low for road and hybrid bikes, but i am not looking for the good kind, just the ones that wont kill me when i am riding it to work, home, beach, etc. wieght doesnt matter too much (just dont make it wiegh more than my car ) I heard bigger wheels will help me ride it more easily, so I am looking for bigger wheels too. hmm..
so... yea.. maybe a hybird.

oooo yea... i was looking on the nashbar.com and saw the iron horse hybird... is that any good.. its in my range..