Back now. Just for starters let me suggest that you try this thread I started a while back. I’m not saying that my comments are great, but a lot of other, more knowledgeable people got in on it and provide commentary and links.
I’d start with the second one of these I did: Basic Tips For New Grafters #2: Different Grafts (Discussion Needed). It’s not great (in fact, on re-reading it it’s a little funny looking) but it could get you started if you’re interested.
I’m by no means a great grafter or any kind of authority, but I have messed up a lot and I’m willing to share some of the pitfalls and misunderstandings that happened to me in the hopes that others will gain from them.
But be careful about grafting. Once you get one to take you get to feeling like some kind of genius. Why, this is surgery! I shoulda been a doctor!
Have fun. Ask lots of questions.