I've finally gotten so sick and tired of the reliability (or lack thereof) of DSL that I've just ordered a fractional T1 line from Speakeasy. DISCLAIMER: the previous link is a referral link...I don't have my line installed yet, so I can't speak to their line quality, but the pre-install service has been the best I've ever seen. If you want to see what Speakeasy has to offer without the referral, that's cool, too.
The downside of a fractional T1 is paying much more (to the tune of a couple hundred dollars a month) for the same bandwidth (384K). The upside is that there's practically no limit to the distance from the CO (unlike DSL, for which I'm at the very outside of the technically feasible range), and the local telco is contractually obligated to actively monitor the line, and respond to any outages within hours. Given that outages (or service problems) with DSL can last for days, in my experience, this should be a notable improvement. T1 also uses double the pairs, so it's likely that I'll be getting closer to my rated speed (though I've had pretty good luck with SDSL on that front).
I would also note that for anyone who, like me, really wants to host their ASP.NET applications on their own server, so they have complete control, a fractional T1 offers (theoretically) pretty good reliability at a reasonable cost. And if you start hosting applications for others, the cost can quickly pay for itself (and it's easy to upgrade to faster speeds should that become necessary).
Finally, one interesting twist with Speakeasy is that they provide the ability to share your broadband connection with neighbors for a fee, via WiFi, and Speakeasy takes care of all of the billing for you. It's an interesting program, in that it allows you to offset some of the costs of a more expensive connection, without having to deal with the payment issues (although you're responsible for tech support, etc.). I haven't decided yet whether I might try to take advantage of this, but according to them, it's unique in the industry that they not only allow this kind of sharing, they actually provide infrastructure for it (including email accounts, etc.).