According to Techtree, Microsoft has said that the release candidate of Service Pack 2 for Windows Vista will be available sometime next week. No official date was disclosed.
Also on the above site, it was mentioned that the file sizes will be 302MB for the 32-bit standalone installer and will come with 5 languages. However, the 64-bit version will be a more alarming 508MB so anyone with low bandwidth available on their broadband packages ought to really decide if it will be better to just wait for the final release, which is still due in the second-quarter of 2009.
As usual, as soon as the RC is released there will be news here on GEEK!, and it will be reviewed here shortly after, so stay tuned.