I can thoroughly recommend Family Tree Builder. I was evaluating using Family Tree Legends. I installed FTL on my laptop,it ran once, then when I went to use it again it would not run under Vista. I emailed FTL with the problem, and they replied that they knew about it and were working on it. I was informed if I did not want to wait I should try Family Tree Builder. I'm glad I did!
The only drawback is their message boards. They take ages to answer. I have been waiting for about 3 weeks for an answer to some queries. They did answer one by email, but am still waiting for a reply to others.
Apart from that it is an excellent program. GO FOR IT!!!!!!!