hi david,
1 year ago i was in exactly the same position of knowing nothing about cat sailing or my 26 year old nacra 5.2, now you've found this site you've done the most important step to learning more quickly

- 1st up search this forum for "nacra 5.2" and chase down all the old threads, right click and save all the pics you can find, they'll come in handy later. and when you've done that chase down the threads of the other nacra 5.2 owners on this site

- also do google searches and check out the for sale section of beachcats for other pics

having lots of pics of other people's boats isn't quite as good as comparing 2 boats side by side and questioning the owner about the differences but it is still pretty useful

- buy "catamaran racing for the 90's" and read it over the winter

do position but some searches here for nacra 5.2 lots of good pics on this site and others