Full service, oils (engine,gearbox,diff), fluids (coolant, brakes,powersteering, clutch), , air filter (not a pod please) correct plugs, wheel alignment, then get it run up on a dyno to see if the fuel and shizzles is OK.
Work out what you want the car for, then work out your budget, then talk again to tuner and ask questions, be carefull, alot of dodge guys out there just want your money in their pocket.
Read all the threads in here, dont forget brakes and handling, this should be one of the first upgrades, a well set up car will be better than a car with more power but no brake or susspension upgrades.
Dont buy cheap tyres .
Only replace things that need replacing, dont buy things that will need to be upgraded again later if the power bug bites..