I was looking for some forums to get some advice on which bike I should buy. So basically what I am wanting to do is minimal. Just plain street bike or a bike to get around on but that I feel open to doing freestyle or basic BMX if I want so I want to go for a BMX bike. My budget is low and I want to buy something used so i'm looking on Craigslist. I have really little bike knowledge and don't know much about bikes themselves. I used to own a Haro at a younger age but I outgrew it and I am really craving a bike right now. Budget is about $100-$175 for a used bike and I think that is doable. Let me show yall some craigslist ads and see yalls feedback. Also if theres another route I should take let me know

Specialized 415 bmx FS-Xpert
http://austin.craigslist.org/bik/1527252079.html

Specialized Vegas bmx Dirt Boy
http://austin.craigslist.org/bik/1527259238.html

Haro 24" BMX Cruizer
http://austin.craigslist.org/bik/1520628512.html

Haro BMX BIKE
http://austin.craigslist.org/bik/1519934493.html

Another Haro
http://austin.craigslist.org/bik/1507711466.html

DK
http://austin.craigslist.org/bik/1522117589.html

I'm looking for something relatively light. I know that the budget is low. Also what size bike should I be looking for if i'm about 6ft? Just need some input. I'm not looking for anything fancy just something that gives me flexibility if I want to get into BMX.

Thanks!