Brian has given good advice do not rush in. I am at a point where I have been wanting to try this paper, that developer, this film, etc. However the best advice I have been given, is find what is working for me now and stick with it - now that does not mean not using wt or ct papers. The developers could be different - the point is to not introduce to many variables into your work so that if something happens you do/don't like you will know why and can do or not do again.
BTW - I think Tim Rudmans toning book is excellent, but again take it slow.
Shoot more film, print more prints..it's not only fun, but it helps us become better at our craft.