I have a Nikon N75 and D80 with the standard Nikon 28-80 and a Sigma 70-300 that I use mostly for macro. I use some Cokin P series filters as well as some Hoya and Promaster screw-ins (polariser, warm-up, ND, ND grad, sunset grad, diffuser...etc.).
Welcome to Picture Social Brian. On Picture Social you will find work of professional and amateur alike. Both do some amazing work. Everyone is eager to give advice and criticism when asked as well as praise on your great work. There are many groups that you can join. Participate in areas you like. Comment on others work on their pages. Most of all, enjoy this site.