I'd definitely start with the clutch adjustment (hopefully that's all it is), and while you've got it up there adjust the valves (cheap insurance, and all you need is valve cover gaskets), Pelican Parts has a descent article for this procedure. Drop it down, take it for a drive, and check the plugs, they'll say alot about how the A/F is. If yours still has the stock FI, I'd nip off the first 1/2" or so of each vacuum line and reattach them. Every one of my lines were cracked towards the end (I actually replaced "all" of the vacuum and fuel lines, but you're on a budget
). One of my biggest vacuum leaks was one of the big rubber connectors from the plenum to the intake runner. Squirt a "little" carb cleaner around all of the vacuum connections and listen for a change in the rpm. You may also want to consider moving your fuel pump up to the front trunk, could be vapor locking (that is if it hasn't already been moved).
If you are running FI, check out "pbander's" website on fuel injection, VERY informative troubleshooting tool!
http://members.rennlist.com/pbanders/and remember, it's all AIR/FUEL/SPARK. Don't let the little bastard piss-off/confuse you