Looks like you managed to aquire a fine piece of kit there. You will be pleased with the reg. no doubt.
In answer to Florida_boys question about cave diving, and choice of regs...Listen to the advice that sheck33 has given you with regards to quality of you main, and back up reg. DO NO GO CHEAP. A cave is the last place you want to be when you find that your choice on saving some money, may have just cost you your life. If you are really lucky, you might come out of a bad situation alive but shaken, however, chances are you wont. Get trained. Buy smart, not cheap. Practice and drill till you can do OOA, and other emergencies without thinking, but on aquired instinct!
Cave diving is exhilerating and fun, and the exhileration is magnified to some degree by the hostile nature of the enviroment you are entering. (Hostile by way of no means of quick escape, confined, and full of unseen hasards.) It will look easy when watching someone who is trained and has experience, but the trouble starts when some people wrongly perceive it as being easy. Don't get sucked in by this illusion.
Have fun on your journey into cave diving, be prepared, be trained, and be safe.