I have a couple of questions for those running SP1: 1. Can you tell me if its possible to slipstream the Windows Vista Install CD with Service Pack 1? Or will we have to download and install it separately every time we need to re-install windows? 2. Has the Windows Experience Index upper limit rating of '5.9' been unlocked with SP1? 3. Do you notice any significant improvements? i.e. networking improvements, move/copy speeds, disk access/transfer & backup... 4. I'd also like to know if anyone here uses ReadyBoost, whether or not it has been improved or is it just a useless feature. Thanks, would love to know!! I have never gotten Steam to run correctly with Vista for some reason, (Counter Strike matches are a no no, and despite owning the Orange Box I've yet to enjoy the thrills of TF2). So I am keen to find out if SP1 will help me out there too!!