The 352nd are in the D-Day book (
Atlankic Wall), they have 3 lists.
Either the forces on the Beach, a Light Infantry Company for the main land or a StuG Battery to represent the attached StuG's. I would leave the beach forces at home for now as it's a slightly awkward list. I feel the normal infantry is a pretty good list to learn with and once you have the hang of the game.
As for what to get, if you mean to buy I'd look at the
Open Fire Set, if you currently don't own anything as it gives you
HQ, 2 Grenadier Platoons, 3 StuG's, 2 Pak 40's and the rulebook. All used able and all useful.
Other stuff you can get have is:-
3x Grenadier Platoons
StuG's
Mardar III M's
Light Mortars
HMG's
Infantry Guns
10.5cm Artillery
18cm Artillery
Flak 88's
I hope that helps,
Ben