I figured this would be the best place to ask about messenger bags.

My backpack of 12 years is beginning to break (zippers/ tearing fabric/ etc.), and I was going to send it in for repair, leaving me with no bag to take in to work.

I figured I might as well get a messenger bag because it would be most practical for carrying my stuff (laptop, notebooks, etc) to work. There's just so many bags out there that I don't know which ones are good/ bad. I'm planning on riding it in rain or shine. I'm ~150 lbs and about 5'7". I was wondering if anyone had any suggestions. My budget is preferably <$100 (the cheaper the better, but if it will last a very long time, I can go higher).

Thanks in advance...