[wolfsrain]

You would need Bon Voyage too, yes. Also in order to play H&M Stuff you need the Season expansion. The Stuff packs can be added as long as you have the required expansions to play. They can theoretically be added later, but that usually messes up the whole installation. So it's better to stick to that order. If you don't have the needed expansions to play the stuff packs, it's better to install those later, when you buy the required expansions.Most of the older stuff packs and sims expansions can be found in bargain bins at decent prices. As for the latest, well, just wait a bit more and they will be cheaper. Once Sims2:Free Time will be released the price of Bon Voyage should go down.
P.S.:Joe, I've sent you the updated FAQ at your listed mail. Sorry for yesterday, but I had a lot of work, so I've got home late and kinda of crashed in bed directly.