I'll second Mark's comments regarding Anchor Dive Center in St. Croix. I brought along my own computer, mask, fins and camera but everything else was provided by them as part of the standard charter fee (80 cu ft. alum cylinders, weights and belts, Aqualung Titan regs, Mares BCDs, 3mm wetsuits...). Their gear was of good quality and there were no failures during the week I dove with them. Easiest diving I've ever done, anywhere! They take care of everything, all you have to do is step off the swim platform, follow the dive master and enjoy the dive. And they help you up the ladder afterwards. Great folks and the Salt River dive sites are super.
Jim