Looking for tips, tricks, and warnings on beads

I've been working on TW's Celestial Dragon, and I'm not too far from the beading stage. I've never worked with beads, so I'm looking for input.

1. I assume it's best to do these last. Correct?

2. Should I wash and press the piece before beading? I can't imagine pressing after adding beads.

3. What do I need to prepare for as far as doing the actual work? I'm accustomed to holding the piece in my hand (I use Q-Snaps) for stitching. I'll need to work at a table for the beads, won't I? Can this be done with the fabric loose (no hoop or frame)?

4. What gauge needle do you recommend?

5. What am I forgetting to ask about? :-)

(I remember the olden days of the Usenet-based RCTN when a message like this would release a torrent of responses and maybe even set off a mini-flame war or something.)

--Danny