Linq to Sql in custome module, CRUD page question

Hi all, i'm newbie with sitefinity. i want to ask is it possible to have a linq to sql implementation as alternative to the openaccess? any sample or guidance to that?
also is there a way to create a CRUD page (a normal aspx page with logic inside it) and then register them in backend? i have seen the overview page registered in as a subpage in backend as in jobs intermediate module, but i can't find where Create page is registered as in products sample module.

thank you.

Ewww even Microsoft has abandoned L2Sql :) OA is free to use in Sf and VASTLY superior...any reason why you'd want to go back?

haha yeah i know, my reason is because i'm used to it so it's will cut the learning curve. and to be honest i'm quite confused with the way openAccess is used in custom module (i see one in product catalog module). also any idea how they define the backend page in product catalog module? from intermediate i see they are using acsx template but in product i can't find the template? am i missing something?