My son got married this weekend!

So now that all that hulaBaloo (or hulaBagheera... hee hee this is a Disney site so I had to go for it) has come and gone, I can concentrate on my running again and training for my first triathlon this summer. Not very comfortable with the 800 meter swim, but I think the bike and run should be ok for me.
Does anyone do speed work or hill work in their training? I talked to a guy at my last race and he said to take a running day and do a hill like 10 times (if I don't die first) and it will help alot with getting stronger and faster.