Where can i get a rugged roomy stylish messenger bag that fits a laptop?

i have a boho kinda style. i want a big roomy messenger bag thats comfortable but also can be safe for a laptop. and since im in school, i want it to be stylish but not too modern. think veronica mars season three cute shoulder bag, orrr hillary duff as sam montgomery's cool grey messenger bad (: or even lindsay lohan as lola's bag in confessions of a drama queen, which reminds me...she also had an awesome bag in freaky friday! so yeah just stuff like that i neeeed one~ cuz i hate my jansport! thankk you