Read the original post again. If I may humbly suggest, up the comprehension skills slider to the right (it's in your control panel).
I believe functionally, yes, using the dremel WITH THE ROUTER attachment (i.e. not freehand) will work, OK. If you have a lot of laminate/tmolding slots to cut/trim, I'd recommend just getting an el cheapo router...
I imagine that it would take longer using the dremel tool and probably wear out the dremel faster (althouhg I don't have a dremel that i've abused to back up my hypothesis)... know what i mean, though?
If you're gonna go to the trouble to get the 20 dollar router attachment (assuming you already own a dremel) maybe save up a little bit more for a cheapo or used router (check pawnshops/flea markets/ebay/sales)
if you're just doing a Control Panel i'm sure a dremel will be fine.. . but I have my suspicions of using it to trim the laminate/cut the t-molding on a full sized cabinet would be asking a lot of the dremel (or require extra patience to cut everything)
*shrug*
rampy
EDIT'ed for clarity so that the fricken llama would be happy.