audio newbie question

I don't currently have a good stereo... and the logical thing to do in shopping for a system seemed to be to start with the speakers.

So I've been listening to as many speakers as I could, and so far I'm leaning toward the Dynaudio Audience 72 or the System Audio 1270. I've heard the following speakers: Magnepan 1.6, Thiel 1.5 & .5, numerous B&W up to $1500USD, Proac Studio 125, Paradigm Studio 100 & Monitor 7, Meadowlark Kestrels, Triangle Celcius, Martin Logan Aerius, Quad 988, Tannoy Revolution 2, Klipsch RF3, Mirage, Boston Acoustic, Dynaudio Audience 72, & System Audio 1250 & 1270 (believe me, I'm getting tired). I'm still planning on auditioning the JMLabs & Vandersteens.

Anyway, my question: Is there anything else I should consider (I'm trying to stay under $2K for the speakers - new or used)? I'm starting to lean toward used, since it seems to be a much better value... only problem is my lack of experience with most speakers. I'm also thinking that at the price range I'm looking at, I'll need a subwoofer (I like very tight bass, but with weight... not boomy!). Should I go with a less expensive option and get the subwoofer up front?

BTW, I listen to everything from jazz & folk to electronic & pop to rock & even heavy metal. I like crisp imaging and good dynamics... and a large sweet spot. I also don't know what electronics to get, so I'll take suggestions on that as well (trying to stay under $1600 for that). I'll work on the source at a later date. Thanks in advance for the advice.

Dennis