Rollo - 12:01 am on Apr 17, 2006 (gmt 0)
Sandboxed no, but as the others said be sure not to lose the URLs that are ranking well and bringing traffic. You can do redirects or even just keep the same URL. For those that aren't, who knows, maybe a schuffle would do some good. Whether a site is html or php or whatever shouldn't make a bit of difference.