You're right about the interior, the full leather does make the cabin seem a bit dull whereas the coloured inserts brighten it up quite a lot. Still, heated leather seats... mmmm!
Its annoying really, I had my loan money through the other day and spent a roughly similar amount to the cost of the leather on paying off my credit card. I think I'll wait though and go with the normal interior, the 2 months will hopefully go fairly quickly.