Natasha,
My Tilos bag is several years old and I haven't seen one in ages. Armor makes one almost identicle to it. I think I paid about $150 for it back then and that's about what the Armor's are going for.
That old bag's zippers are getting kinda worn, especially around the corners. This spring I found a regular suitcase, hard sides, wheels, really tall handle...at one of the outlet stores, $59! I think it's made by Atlantis...coinsidence only! It's worked out great on all the dive trips this year. Looks like regular old luggage so I really don't worry about it at all. If you haven't bought anything yet, think about using regular luggage bags. No sense advertising what's in your bag! And as you've probably noticed, lots of the 'dive gear' bags sold through the dive shops are almost useless in practicality. They look good but often can't hold all your stuff!
Like Rick (?) said, my regs, computer, mask and logbook don't get packed. They go with me in carry on.
Dee