There are a lot of great computers out there, but it really depends on what you mean by need it to do. The oceanic computers are great, but are little help with deco. All of the computers come with features intended for a certain market. If you are looking for one that will be a general computer for non deco diving there are lots out there that are good systems. Oceanic, sub gravity, shearwater, diverite all make good computers just depends on what features are useful to you and the diving you do. Your best bet is go out with local divers around you, look at what computers they have and find out why. This will leave you much happier when you make your decision, plus you will likely find some one who can show you the ins and outs of that computer. I see people all the time who have a high end computer on their wrist with no idea how to use it. If you get really lucky some one may have a spare that you can take on a dive and see if it is one you like or not.