Welcome to the forum, lots of good help on here and lots of good looking 400ex's. I did the same thing about 5 years ago, sold my dirt bike for an ATV.
welcome to the site, and good luck with what ever ATV you end up with
tip from em is, when turning keep your feet on the pegs LOL
long time MX guy here and I found when going to ATV's at first I wanted to stick my leg out as on a bike in turns , (was much worse on 3 wheelers back in my day LOL)
Ran my foot over a few too many times(slow learner I guess)
Yes I will have to stop that habbit of sticking my leg out on turns, guess thats just a dirtbike thing lol
Yeah I think its a dirt bike only thing,
when I first got into sport bikes, Late 80's (Interceptor 750) I also found myself wanting to do that at first till I got the hang of how these bikes work, and amazing how they can allow you to lean in a corner at speed too!
I also noticed, it was a harder habit to break at first(going from MX tro ATV's)
and then going back and forth between MX bikes ansd ATV's
I think, it was harder to get BACK into sticking my leg out on MX bikes,than learning NOT to on ATV's
guess thats also in part of getting older and lazier HAHA!
ATv's kinda spoil you, as about anyone can ride one with almost zero skill level and stay up right!
(sorry folks) MX Bikes take more skills to ride them! IMO
Sport atv's can be fun, but never got too involved with them, like the 4x4's, can do more without needing speed to do so! again, I guess an aging thing!
best of luck again, and be sure to post some pic's of what you get!