Pack.... You can get a voltage converter for most items. But, motorized equipment such as turntables with AC motors will run at the wrong speed because of the 50HZ frequency. If you can get a frequency control device such as the one VPI makes for their TT you could use it on any AC device. DC motors aren't affected by frequency.
Moving to UK, what to do?
I am potentially moving to the UK and like everyone else here, I have lots of equipment and plenty of expensive powercords. I currently use several PS Audio ultimate outlets which apparently are not easily converted to UK standards. All of my other equipment can be changed to 240V without too much hassle. I am currently thinking of buying a PS audio Power Director in the US. It automatically detects 120V or 240V and adjusts accordingly and I would be able to utilize all of my current power cords. I am not terribly familiar with other power delivery systems, but would be curious if there are others that would be easily be transferred to the UK. Also, does anything take in 240V and spit out 120V? That would eliminate even another step in the moving process. Any thoughts on this would be greatly appreciated...