Try this site:
http://www.escapeartist.com
A little over the top, but you might be able to find some information that is useful.
I would have to recommend Prague, CZ though…I live here and it is great! As an American you can stay here as long as your money holds out. Officially you only have a 30 day visa, BUT no westerner ever gets caught or hassled (they just hassle the Ukrainians, etc), and if you want to be honest, you can pop over the border to Germany(Poland, Austria, Slovakia, etc), then come right back for another 30 days. But seriously- no worries about length of stay. I have many friends who have never bothered about things like that and they have been here for 8 years.
Prague has everything an expat could want. A historic, gorgeous place where every day there are cultural events galore, wonderful areas to explore all around, public transportation is the best around(no need for a car), a lot of people speak English and there are plenty of other expats so you can make friends in say, oh, a beer’s worth of time…Did I mention the beer? Best in the world! Which will lead me to prices- CHEAP! You can live in a nice apartment for US$300 to US$500 a month (higher rent, nicer view), food can be as low as US$100 a month for healthy in-home eating, or just eat every meal at one of a thousand places- Lunch US$2.00 to US$5, Dinner US$4 to US$30 (for a fancy meal). My wife and I live fairly comfortably on under $700 a month for both of us (attic apartment, eat out 2 to 3 times a week, excursions on weekends, beer). If you are younger, there are Raves and dance clubs going every night of the week. Older? Well, every night there are classical concerts and plays and operas and neat cafe’s open til the wee hours as well. Artist? Saw a bungalow with 2 art studios near a castle for US$150 a month rent(middle of nowhere, but hey). An art studio here in the industrial part of town would be around US$200 a month.
If you are feeling even more adventurous, you could live in Brno- about 2 hours north of Vienna. Cheaper than Prague, but prettier in my eyes. Less industry, cleaner air, surrounded by forrests, more relaxed, but not as cosmo as Prague- you’d have to learn a little Czech to get around, but not much…
Tired of the scenery? Skip on down to Greece for 7 days- from Prague by air with a bungalow, US$300 to US$400. Better deals exist to other places or by bus (I saw an ad for a bus trip to the coast of Croatia with a room on the beach for 10 days for US$250, but 16 hours by bus…eeewww!)
Paris had its heyday in the 20’s…come to Prague, its better here.