Nice one Lello, well done.
Your mention of the need for hotshoe cable led me to look in Jessops catalogue. I notice Sunpak ringflash for £269:99
so I feel even better now as I bet you do too.
Your FZ30 appears to have a non dedicated flash foot from diagram in the manual. If so and you are going with Nikon for SLR then it maybe a good bet to get the Nikon SC-17 or SC-28 unit as it will work with both cameras and allow for future purchase of flashy Nikon unit that can then operate on ITTL.
I hope you enjoyed your New Years Eve.
Don