Lucky you.
Seriously, getting the "pro" deal with the Aqualung family of dive gear should set you up with an enviable scuba locker.
Don't buy anything until you get your OW certification and decide that you want to continue to dive. You should know that lots of people get scuba certified...and then stop diving. It happens. It would suck to have to deal with the hassle of selling all of your used gear...ahem...even though you could probably still sell it for a profit (due to the generous "pro" deal you got).
During your OW class and afterward, you should try out various Aqualung family regs, computers, and BCDs that your store rents out. Find out what you like and don't like about the gear. Talk to DMs and instructors at Sport Chalet about what Aqualung gear they'd recommend.
I have no idea if you'd like the same stuff that I like...but here's what would be on my shopping list:
Mask - the one that fits the best, preferably with a black mask skirt
Snorkel - the cheapest, simplest one they have that doesn't have a big one-way "dry valve" on top or one that rolls up and fits into a pocket (Nautilus Travel Snorkel)
Fins - don't like any of Aqualung's fins (sorry!)
Exposure protection - Whites Fusion drysuit + appropriate undergarments (MK2 or MK3, depending on your local water temps) + Whites Evo3 boots
BC - Apeks WTX BP/W system or Seaquest Balance (if rear-inflate is desired) or Seaquest Pro QD (if conventional jacket-style is desired); stay away from any BCDs with the i3 up/down lever
Regs - Apeks XTX100/FST first stage + Apeks XTX50 second stage alternate (yellow if used as octo or black if used as necklaced backup on long-hose setup); the Aqualung Legend is a great reg also; the Aqualung Mikron or Apeks Flight regs are nice choices if you plan to do a lot of warm water vacations (very portable, come with Miflex hoses)
Gauges - Suunto Analog SPG only (I would prefer a brass and glass SPG...but I've put over 300 dives on my Suunto SPG and it just won't die!)
Compass - Suunto SK7 (you
MUST get this)
Computer - Suunto Vyper (wrist-mount) + Suunto USB download cable (optional)
I'm not sure that you'll be able to get all of the stuff on my list for under $1000. The drysuit would almost certainly put you over $1000. If you don't need a drysuit, then replace it with a nicely-fitting Aqualung wetsuit of appropriate thickness...then you should be able to stay within your budget.
Have fun with your class...