I want to start getting into riding but right now its not feasible for me to spend over 200 and definitely not the 500 to 1000s of dollars I've seen as I'm still in college. I have found this one, http://www.walmart.com/ip/700C-GMC-D...-Bike/12080282 and also this, http://brunswick.craigslist.org/bik/2316998508.html. Are either of these a decent starter bike or should I wait till my next paycheck and get something like http://www.walmart.com/ip/Schwinn-Me...d-Bike/8399247 or http://www.walmart.com/ip/Schwinn-Va...-Bike/14956324. Remember that I am a poor college kid. Thanks for any info or advice you may give me.