I recently ordered a UTG messenger bag and my wife mocked me for getting a 'murse.' It came in last night, and I love it.
The zippers aren't the smoothest, but after making some cobra knotted paracord pulls, they work really well.
A friend of mine (Rick Finsta on this board and many others) has the maxpedition fatboy, which is slightly smaller but has more interior pockets but othherwise very similar. I'd figure for $29, I'd give the UTG a try, and so fary I'm really happy with it.