Mic310
Buy the "most" Garmin aviation focused GPS that you can afford. Round up all your spare cash then drop the weights on your oldies, girlfriend/wife/partner, in-laws etc to contribute to your birthday and xmas presents for the next X years and work your way up the Garmin line of aviation portable GPS's to match your budget (96, 196, 296, 596).
YOU WILL NEVER REGRET IT!
Dr 
PS: No, I don't work for Garmin - but I do have Garmin III Pilot, 296, 496, 430W...... and don't tell anyone, but I just bought a Garmin GPS 20X sensor.