As far as I know, the cheapest place to stay in Oświęcim is Hotel Kamieniec (see http://www.hotel-kamieniec.com.pl/). Public transport to and from the hotel might be a pain (the buses are very rare), but the Auschwitz museum is within walking distance and if you want to go anywhere else you may find that the price of accomodation + taxi might still come out cheaper and more convenient than spending the night elsewhere. As long as you're not going outside of Oswiecim it's unlikely that a taxi trip will cost you more than around 15zl, so keep that in mind when you calculate costs.
Most people, however, stay in Kraków (which has a lot more tourist sites than Oświęcim) and take the bus to the Auschwitz museum from there.

As for the Auschwitz museum itself it is one of few places in my life which I left and thought "everyone should see this" and everyone I know who has been there says the same. Even if you're not the sort of tourist that does museums and tourist sites you will not regret coming to this one.

When in Poland, make sure you can ask the waitress: "Pani, ma yakeesh canapki?" This will get you far!!!! hee heee

don't buy the salt lamps!

Plenty of mountain and valley tracks for plain tourists, hikers and experienced climbers. Getting a map would be good, but try to get it in a bookstore 'cause the locals can be a bit greedy. Watch for horse cart drivers who would love to give you a lift and then ask for ridiculous money in return.

Nice medieval castle at a lakeside. Good for some sightseeing or hiking. You can rent a sailboat, kayack or waterbike and enjoy the Tatra Mountains view, or simply take a walk or cycle around. A good place to grab a bite is a restaurant right on the other side of the road (opposite to the castle) if you want to try out some local cuisine. It is however a bit expensive for the region. So if you're not a big spender - try something a bit further from the castle.

Polecam miód pitny! Ten sam miód, dużo taniej niż w Kaziumierzu!

Polecam wycieczki jeepami, szczególnie do Wąwozu Korzeniowego. Miód pitny najlepiej kupować w pobliskim Janowcu (wiem że na pewno podczas festynu na zamku jest sprzedawany), dużo taniej niż w Kazimierzu (chociaż tu znów bardzo miła i ładna pani sprzedaje... ehs dylematy). Polecam lody i ogólnie jedzenie oraz kwatery w pensjonacie Joanna.

stolica Podhala polozona miedzy dwoma pasmami gor- Tatrami i Gorcami w kotlnie Orawsko- Nowotarskiej

if you need to call a taxi, ask your hotel to call form one and get their number for the future. Aslo ask how much will they charge you for a trip so you are prepared. Do not take any taxi from the street, they will likely rip you off,,,specially if you speak English LOL

Locals are not to friendly, good local food, winter: ski, summer: great for walks