XAMPP is just 32bit on Windows, sadly.
There are a few things that, from my POV, using CGI are convenient for - not the least of which is testing out data merge on form layouts (I want to be able to produce consistent results on templated output forms). The DB application will simply be run locally in the first instance.
Once I have abit of practice with SB, I will probably end up using the SBHTTP daemon for most of what I need to do.
At first glance, SB is able to do what I have been using Saxon to do in about a tenth of the time, and with a lot less mucking about with XSLT files, using a simple HTML template that can be tested on the fly, which means a whole lot.