Welcome to Flyertalk I Fly Southwest!. If you haven't yet, you should check out the mileage run section of flyertalk as well as the Trip report section. Both are chock full of folks who fly just for the sake of flying (well, earning miles and status as well). I've flown as far as Singapore with only a few hours before returning back home and will do it again in a heartbeat. Enjoy your flight and enjoy Flyertalk

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Edited to add:
I don't know what terminal SWA uses at DTW, but make sure to go see Northwests World Gateway terminal. Really modern and cool with an indoor shuttle train that looks like a model train running along the interior near the roof-line.
[This message has been edited by OutOfOffice (edited 10-29-2003).]