Why, thank you!
I think I took so long partly mostly because I spend far too much time in a number of online forums as it is. Also, in part I'd just become used to avoiding forums for Lucasfilm-related fansites - years ago, I shied away from the forums at TheForce.net because I was afraid of running into spoilers on the prequels despite my best efforts, and it just sort of became a habit. I think this might actually be one of the worst times for me to have joined here, actually - there seem to be Crystal Skull spoilers in some of the merchandise threads in the "Collecting Indy" forum, for example (should those be there, BTW?).
Perusing other, spoiler-free threads, though, I decided I just couldn't stay away from some of the discussions, particularly with regards to the scores and their soundtrack albums, all things Young Indy, and Indy LEGO. When I saw that someone else had experienced problems with getting the interactive DVD-ROM stuff on the new DVDs to work on a Mac, that was probably the proverbial last straw, and I had to chime in (seriously, if anyone knows anything about getting those Young Indy DVD-ROM features working on a Macintosh, I'm all ears...).