Tri specific shorts are handy even for the occasional racer or even some inexpensive cycling shorts with a softer/thinner padding. Just wear them under the wetsuit and you don't have to worry about changing them for the bike or run.

T1 (swim-bike) - strip off wetsuit, cap, googles, put on socks (because i'm wussy like that), shoes, shirt (depends on the temperature, i sometimes throw on a form fitting long sleeve underarmor shirt), sunglasses, gloves (again, i'm wussy), helmet (and maybe knee warmers again depending on the temperature).

T2 (bike-run) - swap shoes, remove helmet, and go.

Usually i just line up everything on the ground in the order i'll be grabbing it.

www.beginnertriathlete.com has alot of good tips.