2000Firebird- Don't let the beading bother you, fresh paint will do that even with nothing on it. Now that it's all wax-free, yeah, get the #5 and use that for the next month or two. NO harm done and now you're on the right track.
Jinba ittai- Hope I didn't give the impression I do my own body/paint work, I'm not even *close* to skilled in that area. I just take a great interest in what the shops use. I know the guys who do the work for me, and they always want to talk about what paint they used, their new equipment, etc. etc.
The IHG is very popular, and it's easier to find than the #5, that's for sure! IHG is probably the #1 product for fresh paint. I've used both it and the #5 and it's not like you'll go wrong with the IHG.
I always preferred the #5, so I recently did a side-by-side comparison. I found I still like the #5 better (looks, ease of use, slickness, you name it), which is why I always recommend it so enthusiastically. I've used #7 since forever (as in back when all cars were single stage) and I agree it's not easy stuff to work with. The #5 is a *LOT* better in that regard, about as easy a product as I've ever used, can't think of anything that's easier.