There really is no such animal. The closest thing is the Uniden BCT-15, which runs anywhere between $219.95 to $269.95 delivered, depending on how good a shopper you are. There is no non-trunking scanner with alpha tags.
Radio shack has the Pro-163 that makes an ideal base scanner. Software is Win97, programming cable is RS part# 20-047. Alphatags for the bank and the frequency.Look around for a cheap used RadioShack Pro-2055, ebay always has some. They do have an issue with some radio's display going out but thats an easy fix. They are pretty decent recievers and they support 16 character alpha tags.
If I'm not mistaken, the PRO-2067 is the base/mobile version of the PRO-92. They are usually available on e-bay for less than $80. I'm not aware of any inexpensive base/mobile scanner that has alpha tags but doesn't do trunking. If you only need conventional scanning, the 2067 is a good deal for the money.The PRO-92 & PRO-95 support alpha tagging and programming via computer (freeware), but also do trunking and have no related base models.