I like the metal plate. Frankly, though, I believe that after a few hundred dives you'd want to get rid of some of the excess things which do little to improve your dive... Like the cummerbund and the extra D-rings. There are simpler, yet similar systems out there that would cost less, be more durable, and do exactly what you want.
A 75 lift wing is pretty huge. If you don't need that much lift, then I would recommend something smaller. You'll find that a smaller wing gets in the way less, is easier to pack and dry, and is many times more streamlined in the water. The favored wings here on this board seem to be less than 30 pounds of lift for single tanks, and less than 50 with doubles.
I've never dived that particular computer or the regulator, so I can't comment on their performance. I can tell you, though, that they were not on the top of the lists in Rodale's recent reg tests.
I recommend doing some research. Rodale's site is
http://www.scubadiving.com , but only look at this as a guide; remember that their mag accepts outside advertising, and that might influence their decisions. That said, they seem to be somewhat "on" with my personal experiences with the dozen or so regs that I've personally tried.
I also recommend looking at independent divers' opinions here on this board... Search around and I think you'll find the sort of information that can be really helpful. There are many advocates here of the backplate and wing (like what you're looking at, but simpler) and Scubapro and Apeks regs seem to be the most popular due to their reputations, performance, servicability, warranties, simplicity, and hose routing. I've heard positive comments about Aqualung and Atomics regs too.
Lastly (and most importantly) I would recommend trying out the gear as much as possible. Many shops will allow you to try it out before purchasing, and if you're buying a package and have good prices for the online stuff, you may find a dive shop willing to work a good deal for you. They have the ability to throw in air fills, annual service, and things of the sort. Just remember to include shipping costs when comparing prices. No doubt you'll find better prices online, but with all of the extra services and freebies that a dive shop can offer, it may be worthwhile to keep your business there.
Good luck in your decision.