I'm actually working on 64bit and 4GB of ram, is working fine with Visual Studio 2004 64-bit, and visual Studio 2008 64-bit, and SQL-Server 2005/2008 64-bit, with no problems at all. It seesm the future of the 64bit is not bad after all, and the things are really so fast on my machine even with the IE64-bit. I suggest for anyone who's doing lot's of development like me should be using 64-bit machines. Thanks, Bryan Soliman