I'm buying a Lumea/question

[Peopleplease]

Finally I've decided to just take the plunge and buy one after wanting one for YEARS. We're going on holiday the end of September for 2 weeks that will involve shorts and swimsuits and I'd be shaving twice a day otherwise.

Because I've been looking into this for so long I'm pretty sure of the answer to my question but want to double check anyway.

There isn't much difference between the newest models is there? Specifically the 2009/2007/2005 (weirdly the 2008 isn't on sale). It's mostly the number of flashes and attachments?

I'm thinking of the 2009 as there's only £20 difference between it and the 2007.