I too am on the quest of purchasing a new wetsuit as the one I have has done me well but not great for the hobby and a pain to get on.
I have decided to go for 7mm as I intend to go out in winter and don't wish to be too cold. The average temperature of my outings are likely to be between +16 and -5 degrees centigrade (air temperature without windchill).
The Cressi Camaleonte, Tecnica and the Apnea 2 piece wetsuits have "high waist" trousers according to cressi.com and they offer slightly different advantages.
The Camaleonte is 5mm trousers and 7mm top and comes in a great cammo but for a higher price than the Apnea, which comes in full 5mm or full 7mm and is solid black/grey in colour.
The Tecnica has full 7mm with great knee and elbow protection along with super cammo, but the places selling it say it has "long john" trousers, and cressi.com say it has waist high trousers? Does anyone own one to shed light on this?
The mares Instinct has 5mm trousers and 7mm top and looks just the part too.
Tempting to go for the thinner trousers/thicker top, but I fear my legs will turn in to icy twigs and my feet will drop off :hmm
After spending much time looking, I have found that the basics of the suits seem to be more robust looking on the long john 2-part suits than the high waist, certainly for the lower budget of less than £170 (pounds sterling)
I had a look at the Oceanos but in 7mm it would come to £199-27, and for 5mm it would be £155-55. Although very cheap for made to measure, it would mean going over budget when taking my other kit in to account.
There are loads of suits for a budget of around £150 and I hope that I have found one for myself.
:wave If anyone has some words of warning/advice about Cressi wetsuits, please let me know very soon
(Looking forward very much to getting some proper kit for the hobby)