Welcome KathiConga. This is the best forum I've ever been associated with. Everyone is extremely helpful, respectful, and loaded with experience. Keep visiting. Hardly a day goes by where I don't learn something here.
I started with the Bobby Sanabria video, "Getting Started...". Bobby is a very good instructor and the video is well produced with good camera angles and has a brief play-along segment. It will teach you a little about the care and tuning of the conga and basic hand care and then you will learn the tumbao for one drum and the acaballo.
IMHO, the best instructional tool out there for beginners is "Conga Drumming: A Beginners Guide to Playing With Time" by Alan Dworsky and Betsy Sansby. It is available in many large bookstores or on their website,
http://www.dancinghands.com, or used at abe.com. These people have developed their own system of notation, which is easy to read, follow, and printed large so as to be seen from floor level. They even designed the book to sit flat open. They will teach most of the basic Cuban and some Puerto Rican ryhthms. Each lesson builds upon the previous. They will teach basic parts and then add a little at a time to complete the pattern. They will guide you through polyrhythms, teaching you every pattern in clave (or 6/8 bell), two hand independence, and two drum playing. I simply cannot recommend it more highly; it was my bible for the first two years of playing. They have an accompanying video for it which I have not seen but some on this site have and speak well of it. They have other books as well, such as "Hip Grooves For Hand Drums", which will teach contemporary rhythms for non-latin music, "Secrets of The Hand" which will teach soloing strategies, and the highly regarded "Rythmic Vocabulary".