i dunno, i think i'd still have more fun if the server were busier.
are there any interesting mods out or anything people would like to see?
I think the Technic pack mod would make things indeed busier, if it was something that could work on a server without major trouble (it seems like it has trouble at times even with the default mc), although really any of the individual mods in that pack are good enough on their own (especially the Equivalent Exchange mod, at least when it comes to building/destroying at the most useful rates imaginable). It's basically all I ever play when it comes to single-player minecraft.
MedievalCraft also looks like it has a chance at being really fun, but it's PvP based, so it could only do well if there was already a good amount of activity going on.