I have recently come into a little bit of money and now I want to do some mechanical work on my car. I am looking to get a tune up and a coolant flush. My Ford dealership quoted me a price of $300 for both jobs. Is this a good price? Also, what other maintenance work would you suggest to prevent future problems. I have a '98 SE with the 2.5 V6

98 Tour SE 2.5L Pioneer 8600 HU 4 Infinity Kappa 5'7's 2 Kenwood Typhoon 12's 18" TR Motorsports wheels