I got my new iMac today. I switched from a 13" MacBook Pro to the 21.5" entry level iMac. I decided to go for the iMac as I thought it would be a significant upgrade from my MacBook Pro. I mostly used my MBP at my desk so I decided I would be better off with something more desktop oriented. The iMac is brilliant and very, very fast and the display is amazing. However, there are 3 very small niggling things that are bothering me: When the computer is starting up (whether it be a cold start or a restart) a grey screen appears for about 30 seconds before the spinning circular thing appears with the Apple logo, and then it starts up very fast. The whole start up procedure takes about 1 minute, but I don't think my MacBook Pro hung at the grey screen for so long. Is this okay? Secondly, when I put the computer to sleep and the computer powers down, there is a strange "woosh" noise, but I think this is coming from the Superdrive, although I am not certain. Thirdly, I leaned over the back of the iMac to plug in my external HD and I noticed a tiny blue/white spark as the USB connector touched the connector on the iMac. I think I've heard of this before, and I'm assuming it's normal? Anyway, I've been using the iMac for around 6 hours now and it's extremely fast, responsive and quiet. The new mouse is just brilliant, but it would be better if it was a tad more ergonomic! Shaun.