The best advice I can provide is this... listen to others opinions, but try for yourself. A lot of shops now have programs setup to let divers/prospective buyers try the gear out before they buy. Usually this will be in the pool while another class is going on and your kind of on your own, but some will actually send a DM with you to help you out. Only you can tell what you will like the best.
Now, here's my $.02 on some of the products available...
Fins: I usually recommend a paddle fin for newer divers. Helps promote good propulsion techniques. The Mares Quattro is awesome as are the Aqualung blades. A fairly recent addition is the Scubapro Razor. Amazing nice fin. If you absolutely want split fins, I like my Scubapro Twin Jets. I think the black are better because they are stiffer.
BCDs: I personally prefer back inflates and currently dive a BP/Wing. I think it provides the most in the form of versatility and flexibility. On the jacket side, my absolute favorite is the Scubapro Glide+, but the Seaquest Pro QD is not far behind. Both have really good construction and excellent trim characteristics without the bulkiness of many jackets.
Regulators: I use the Mk25/G250HP and love them. I've also used Apeks (awesome regulators) and Mares. I like the MR22/Abyss system. One thing I really like about Sherwood regulators is their toughness and dependability. I work for Sherwood dealer/service center and am amazed at the abuse these things will take.
Computers: I prefer UWATEC for two reasons. Customer Service and readability. Don't over look Suunto, however, they make really good instruments, I just think they can be difficult to read at times.
The only really good advice I can give you is to keep it simple. Don't over load yourself with overly complex and bulky equipment.
Good Diving and congrats on you OW cert!