We've recently posted Experimental PostGIS binaries for 2.0 for Windows 32-bit for PostgreSQL 8.4, 9.0, and 9.1 Alpha1 releases. I'm sure Paul is having a fit now, but we were too excited about the upcoming PostGIS 2.0 not to share it. We are after all PostGIS Technical Evangelists.
This new release contains PostGIS Raster (now officially part of PostGIS 2.0), the new Shapefile Gui loader that allows for loading of multiple shapefiles at once. Please keep in mind that these are experimental and are undergoing massive changes as we speak. So DO NOT USE THESE FOR PRODUCTION though the PostGIS development team (I think I speak for all) are very excited to get bug reports early and often. Though its fairly safe to use the stand-alone loader in production use. I think the worst it will do is crash.
Also check out our demonstration of the new shapefile loader, the new and improved PgAdminIII 1.13 plugins architecture, and a PostGIS PgAdmin plugin by JÃ©rÃ´me ROLLAND for rendering ad-hoc PostGIS queries right in PgAdmin that he built using MapWindow.NET development kit. Sadly I think his tool only works on windows.