I figured when I bought my first computer 3 months ago before I did my OW, that on a feature basis, they all did pretty much the same things at the cheaper end of the market.
I looked at comparative reviews, and looked at the major brands. My 2 criteria were price and external download capability. I chose a puck pro in red for myself and blue fur my son, so we wouldn't mix them up. Landed to Australia for Aud$220ea, plus Data cable for Aud$50.
IF I need/want to do tech diving in a couple of years, I can look at upgrading then on a needs/requirements basis, and I will be able to justify the investment at that point.
My personal advice, don't spend money now on functions YOU THINK you might need in 1-2 years time, buy for your immediate requirements (plus a little scope creep). This goes for computers, bcds/wings, regs, exposure protection, fins, masks, etc
Yes, you MAY but things twice, but if that happens, you are buying the second time with a true reason I'm mind of a capability you require.
Go and have FUN, that is what the F in BWRAF means