using US dreamcast in UK

Will I be able to use the US dreamcast on a UK power supply, or will I need a power adaptor?

Basically, does the DC work on various voltages? UK is 240 volt.

I know everything else will work fine, but I just need to know about the power.

Thanks, sorry for the slightly off topic post.

[cheekymonkey]

you'll need a step down power supply to get any ntsc machines working in the Uk or else you're gonna blow the DC psu!! apart from that...a tv which accepts ntsc signals and thats about it