Welcome.
You can nab a few blower or rebuild the one you have for $100 or less if you look. Intake gaskets...and a blower gasket from GM...they are less than $60 IIRC...so check your local dealer or auto parts store. You DO NOT want a Garlock S/C gasket and you WANT the aluminum lower intake gaskets...you'll also need new coolant elbows when you change the LIM gaskets...those are in the HELP section at your local auto parts store too. This would also be a great time to do the plugs/wires/flush the coolant and replace with the yellow or green stuff/fuel filter/PCV Valve/Oil & Oil Filter, and an air filter.
If you plan on modding...check out my Safely Modding Your 3800 thread in the General Tech Section at the top. If not, I suggest Autolite 606 Spark Plugs, Lifetime warranty plug wires, and a K&N/AMSOil Drop In Air Filter
