long time traveler, first time backpacker

[yourfacehxc]

posted this on accident in wrong forum..
hey gang,
so my situation is this. i've worked for bands the last few years and have been all over the world on tour. while i would consider myself well traveled, i have no experience with backpacking or traveling on a budget since the band pays for just about everything. my 24th birthday is coming up and i would like to treat myself to a european trip come end of january/beginning of march for a few weeks. my question is this...
i'm not too sure on where exactly it is i'd like to go. does anyone have any recommendations for affordable, yet worthwhile cities for me to visit? about me: i'm 23, work in entertainment, live in chicago, tattoos, not a big booze drinker but i love coffee shops and enjoy smoking from time to time. i'd like to try and not make this a shopping excursion and stick to seeing and experiencing the places i travel to. any tips for where i should fly into? inexpensive cities that have a lot to offer? right now i'm considering paris, venice, amsterdam, and glasgow. tentative travel dates are 1/26 - 2/16 +/- a couple days. my birthday is 1/28...any recommendations? thanks everyone!