Hi,
Once again thank you for your help.
Finaly I've found an Aqualung Titan LX that came with an ABS octopus and a two gauge console.
It was the same price, and the nearest dive shop offers service for aqualung products.
I will bring it there this week for a full checkup
Now I just can't wait for my next trip to try it
This may be a bit late in coming, but unless the Aqualung has a cold water kit, you may have some problems diving locally in colder waters (the Supreme cold water version is touted as being resistant to freezing when diving in waters colder than 50°F / 10°C is thus recommended by Aqualung).
As for the Sherwood Blizzard, it is a reg you can use year round, in both warm and cold water. The positive pressure bleed from the 1st stage (already mentioned in this thread) essentially makes the unit environmentally sealed, so no extra cold water kit is required. Also, the extra fins in the 2nd stage help keep dry mouth at bay by returning moisture from your breath back to you on the inhale.
Service/maintenance-wise, both are well known enough to be able to be serviced just about anywhere.
Bonne chance,