No bases. Lots of options out there for basing though. The thin metal bases from Wargames Accessories seem to be pretty popular, I've used them for most of my armies as well. Litko bases are another popular choice, as are Renaissance Ink. Lots of folks make their own out of various materials.
Wargames Inc used to carry DBA armies from Essex, but they've had lots of problems and I don't think they are carrying them anymore.
Try Greathall Games:
Here's a little blurb from the folks at Essex, looks like Noble Knight carries them as well, Warpath is a distributor and doesn't do retail sales I think...
You may publish the following if you wish:
Please be aware that Wargames Inc. are no longer an official distributor of our products, and haven't been so for a number of months for numerous reasons. In future we suggest either ordering directly from us or contacting our new stockists in the US:
Warpath Games: warpathgames.com
Noble Knight Games: nobleknight.com
Unit 1 Shannon Centre,
Thames Industrial Estate,
Essex SS8 0PE
Tel: 01268 682309
Hope that helps!