OK well I've done a test run and here's the results - vLited Vista ultimate 32bit, removed: sidebar, speech, foreign languages, auto updates, media centre, remote desktop and assistance, indexing, natural language, defender, system restore. ISO size is ~1.2GB. Install size is ~4.2GB. RAM usage is ~350MB with superfetch and readyboost on and ~315MB with those two off. System seems very responsive and much faster than a default installation. Running Aero basic, not quite as snappy as XP but still very fast. One thing tho, the install size is a bit of a puzzle, I thought I removed quite a lot and the vLite estimate of the space saved is quite a bit off - I know its only an estimate (~3.6GB) but post install I was expecting ~2.6GB as opposed to the 4.2GB currently. Any ideas? Printer drivers perhaps?