Some good advice above for sure. I would suggest simply picking out a good solid entry level Nitrox/EAN dive computer. I personally like the Mares Puck for its ease of use in that category.
You have plenty of time to grow into a more capable unit and by the time you get there dive computers will be cheaper, easier and with features available on the highest end computers today. Aside from the tech computers there simply isn't much the sub $300 computers cannot do for a beginner to intermediate rec diver.
You have plenty of time to grow into a more capable unit and by the time you get there dive computers will be cheaper, easier and with features available on the highest end computers today. Aside from the tech computers there simply isn't much the sub $300 computers cannot do for a beginner to intermediate rec diver.