Samsung clamshells

Hi, I'm hoping to buy a phone. I want a sexy clamshell, preferably with bluetooth. I don't need the most expensive model at all, good looks are what matters to me (Good screen resolution is a bonus, and also I don't want 1 that lags on menus).

There seem to be a load of Samsungs, e.g E720, E530 etc., which would you recommend? What're the differences?

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I like the look of E720 myself.