If you don't mind me asking, about how much do you have to lay out to get a simple, strong, fairly decent quality utilitarian bike?
For just riding around town and light trail work? I'd set the bar as low as $300. Back in the 90s, the Trek 800 series fit that mold perfectly. I don't know what fills that niche today, but if you stick to the major brands and are just looking for basic transportation and light trail riding (no jumps, no obstacles, etc), pretty any sub $400 bike from the big players will work.
Suspension (front or rear) changes the equation a bit and that may be why Jamisjockey says $600. Below $400, I'd definitely want a fully rigid bike. Heck, based on my halfhearted perusals of the local shop, I'd rather not bother with suspension or disk brakes on any bike less than $1k because they tend to put really crappy components on to keep the price low and still get suspension and disk brakes of any quality on. But that's getting out of the "utilitarian" aspect with components like that...
That might be why I'm still pimping my 9yo hardtail.
Edit to add:
http://www2.trekbikes.com/bikes/bike.php?bikeid=1010600&f=19Not sexy, not up to "real" mountain biking, but it'll get you to/from class/store/library and will handle bike paths, dirt roads, etc. It's head and shoulders above what you'll find at wal-mart, target, sears, etc. I'm not crazy that it has a suspension fork. I'd rather have a rigid fork and slightly better components, but that's me.
Chris