T.S.
I know this is a little late - I didn't read my "Daily Digest" from yesterday until just now. Anyway, I would recommend a potty chair that has a guard in the center to catch any stray "shooting". Something that I did with my son that really helped was - I put the potty chair in the living room and let him sit on it, pants off, and watch Elmo (or whatever he was into that day). They when he did pee in the potty, I made a big deal about it praising him and hugging and kissing him saying "yay!!!" He loved it and it made him feel like such a big boy! Then when he started getting the hang of it, I put him in training pants (I didn't use Pull Ups - in my opinion they are just another diaper). His daddy wears boxers and my son wanted to wear them too, so I bought the smallest ones I could find and told him as long as he could keep his underwear dry, he could wear boxers too!