I dove Unisuits (neoprene) for 30 years, will keep you warm in very cold water. Also offers some protection should you flood the suit. A couple of years ago I got a DUI TLS 350 suit and would never go back to neoprene. Using diving concepts thinsulate undergarments, the combination offers flexability the unisuit never did. If you plan on traveling, the tri-lam suits will pack much smaller than neoprene. The closed cell compression issues, that the neoprene suit has are non exhistant w/ a shell suit. One of the biggest problems w/ neoprene suits is in between dives, it's too heavy to keep on, esp. if it doesn't have suspenders. The suit never really drys out, an issue on a multi day trip. If you are wearing mimial undergarments you can get very cold getting in/out of the suit. The shell suit w/ a decent undergarmet keeps you warm if you remove the top and keep the bottom up w/ the suspenders or take the suit off completely. I just got back from a multi-day dive trip to CA. I would wake up, put the undergarment on, and keep it on for the day. I never got cold in 45 degree air / 55 water. Having looked at several suits I would look at DUI suits....if you are going to do alot of NJ wreck diving go w/ the CLX suit (offers great durability) if you do not plan on penetration or digging for the always illusive lobster, get a TLS. While other companies offer good products, the customer service at DUI is outstanding. While they will only sell through their dealers, they will do mods (additional pockets, knife pouches, seal replacement ect...) directly to you. As for price, I would look at their WEB site under used. Suits that were demo, slightly used ect. are offered at discounts (you figure which suit you want, give the suit # to your DUI dealer and he places the order). Diving Concepts has really good, 4 way stretch undergarmets, cheaper than DUI, as well as a great dry glove system. Hope this helps...
Richard
NAUI Instructor