She's burning a little oil and an ex-chrysler mechanic/420A Avenger owner said the valve seals are what could be the problem.

I'm not leaking oil, it's just using it.

Nykon: What is the name of the stuff Dodge sells that you spay into the intake for carbon?

Everyone: If anyone has done this before (replacement), how hard is it and should I just go ahead and leave it to my mechanic?

Making sure you valves seal correctly is VERY important, I'd take it to a mechanic.  (That way if it's done wrong you have someone else to blame!)

Its mopar combustion chamber cleaner.
and try some seafoam before you go about replacing valve seals.

and a compression check/then leakdown test would be the first place I start when burning oil.