But when you cheers with a Timmie's it's more of a clunk than a clink.

Nick - I would go with the 2nd option as well for two really good subs instead of one uber sub. Not that I have any experience with multiple subs personally (yet) but that seems the most logical option to me if you don't need to chase down those final very very low Hz.

Dan
On-Wall M5HP LCR, QS8 & EP500 in 7.1