A first release candidate for GCC 4.5.3 is available from ftp://gcc.gnu.org/pub/gcc/snapshots/4.5.3-RC-20110421/
and shortly its mirrors. It has been generated from SVN revision 172803. I have sofar bootstrapped and tested the release candidate on x86_64-unknown-linux-gnu. Please test it and report any issues to bugzilla. If all goes well the final GCC 4.5.3 release will happen late next week.
