Might be slightly more expensive, but I started with (and still use) the Suunto Vyper and added the Computer Interface Kit later (think it cost about $125).
Just as a note, I personally think the computer interface concept is a little overblown. Although I regularly download my dives to my PC, the usefullness of the detailed dive information is a little overrated. It is nice to see the the dive profiles shown graphically, but my logbook is what I really maintain and what I feel is the the most critical aspect of recording your dives. Therefore, the ability to access and log stored dive history information - while you are on your surface interval - is more important IMHO. Also, another critical function is the ability of the computer to perform dive planning beween dives to determine when you have conducted a sufficient surface interval for your next dive depth & duration.
Also, I would recomend reviewing the conservative/aggressive programming of the computer brands you are considering in additional to the capability to adjust personal and altitude settings. This is very valuable!
Hope this helps!