In reply to pdone: Mastertopo has topos of the main walls on the polish side.
There is also a superb mountain book shop just off the main street in Zakopane , they sell all the guides/maps you will need.
Hala Gasienicowa and Morskie oko are the main climbing areas on the polish side.
Consider staying in a hut for some of your stay as the approaches can be quite long..
Few links on old threads to huts on the Polish side.
Check out the Slovak side as well , even bigger walls.
The Slovak Tatra have 2 select guidebooks written by Marian Bobovcak and Marian Jacina...well worth getting.
On the Polish side Zamarla Turnia ,Koscielec and Mnich have some great routes on them.
On the Slovak side check out the south face of Kiezmarski.
http://taternik.net/
http://mastertopo.pl/plakaty/index.htm
Dont be put off by park regulations , especially on the Slovak side.
Make sure you have valid insurance , id card and your a member of a uiaa climbing club (BMC is fine)..and you will be fine.
If you go to Gerlach..as long as you climb a route harder than Uiaa II you will be fine ( Classic route is Guided only..unless in Descent)