New to MFA and need shoe advice

I'm considering buying my first pair of real shoes (not absurdly cheap) and I wanted some advice. These are going to be Spring/Summer shoes and I'm looking for something versatile (can be worn with jeans, shorts, etc.). Also my budget is fairly limited ($50) and I'm a size 10. My current thoughts are one of these four:

http://www.6pm.com/sperry-top-sider-boat-oxford-navy-salt-washed

http://www.endless.com/Fossil-Mens-Delaney-Boat-Shoe/dp/B004K641FU/ref=sr_1_12?ie=UTF8&cAsin=B004K5WQSK&fromPage=search&sr=1-12&qid=1332621359335&asinTitle=Fossil%20Delaney%20Boat%20Shoe&contextTitle=search%20results&clientPageSize=100&sizes=519579011|519580011|519581011|519582011&node=242086011&sort=price&priceHigh=4331&nodes=242086011&rnid=price

http://www.endless.com/Sperry-Top-Sider-Mens-Burnished-Boat/dp/B004TJAL34/ref=sr_1_19?ie=UTF8&cAsin=B004TJAYNG&fromPage=search&sr=1-19&qid=1332621375989&asinTitle=Sperry%20Top-Sider%20Burnished%20A%2FO%202%20Eye%20Boat%20Shoe&contextTitle=search%20results&clientPageSize=100&sizes=519579011|519580011|519581011|519582011&node=242086011&sort=price&priceHigh=5107&nodes=242086011&rnid=price

http://www.6pm.com/the-cool-people-lukas-taupe Thoughts?