Uh oh.... Dude, get ready for the flood....
First STAY AWAY FROM BIG BOX STORE BIKES!!!!! (sorry, had to make that VERY clear)
Where do you live? If you live near a major city, I would look on Craigs List and try to find a good used bike ( I just got a very nice TREK 750 for $120 (just tuned and new tires).
As for the drive then ride thing... I have NO problems with it. Does it get you on the bike? YES. Does it get your car/truck off the road, even a little bit? YES. Sounds WIN/WIN to me.
Oh, and if you can do 30miles in one stretch, two little ole' hills aint nuttin! (They have these amazing things now, called gears... You can adjust them and make pedaling easier!

Sorry I had to

)
JMHO
Billy
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Master Guns Crittle, You out there??
"A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently and die gallantly. Specialization is for insects." -Robert A. Heinlein