Triode12,
The conservatism of the Suunto computers has been blown out of all proportion on the internet. They are more conservative on deco stops and a little more conservative than SOME dive watches but almost unnoticeable for NDL (without any personal adjustment). I almost didn't buy a suunto due to the supposed conservatism but glad I ignored it and bought a D6i. It's fantastic. My wife owns the Scubapro Meridian (worried about the conservatism of Suunto). For general rec diving, it has very similar NDL but is very twitchy when you start to ascend and is usually the first computer I hear beeping at us to slow down or take longer stops.
Unless you start deco stops, tec diving etc, the Suuntos are great. I have no experience with the former so I can't advise you on later on.
The only other computer I've liked to the level of the D6i is the Petrel and it'll take something special from Suunto to displace that in the more advanced level of computers.