In reply to JossGuyer:
Catalunya is very large and completely stuffed full of world class climbing, so your question is rather vague.
There are now two excellent, up-to-date guidebooks (trilingual english-catalan-spanish) for Catalunya, "Lleida Climbs" and "Tarragona Climbs", by Pete O'Donovan and Dani Andrada. Both are worth the investment and will help you plan your trip. There are also dozens of previous threads on these forums, and quite a lot of information on google.