Based on the tag on the PSU, it looks like the lack of plug was deliberate. Maybe the UK folks can answer better, but isn't it fairly common to manually install plugs on UK appliances?
A 220V-to-110V converter will run you about $40 at Radio Shack, but I think the Molex adapter that AmigaKit sells is a better option.
A PAL CD32 is arguably superior because most of the CD32's software is PAL. Yes, you can switch between NTSC and PAL in software, but having PAL native hardware saves you a step.