I am in the market for a hybrid, and am hoping for some helpful direction. Don't anticipate much trail riding, but the more upright position will be better for my lower back. I am aspiring to be able to use it to commute to work (15 miles or so each way) when the weather is not too foul.

I plan/expect to test ride, but was hoping for advice on narrowing the bikes I consider. I'm a dude in my late 40s, a hair under 5'11" with a healthy weight

My ideal budget is under $600, but I am willing to go up to $800 if the benefit is there.

I am able to get a discount on some Diamondback bikes, while the savings would be nice, it is not a driver for the decision. I'd willingly pay more and at list to get a better ride. FWIW, I think it is roughly 30% off of list for the Insight series (Clarity, too if "gender" for hybrids is marketing fluff).

Thanks in advance from this n00b.