Don't suppose they do a dual fuel petrol/diesel option?
Not yet!
Seriously though, you should consider derv with an open mind, especially if you're going to buy new/nearly new with manufacturers warranty.
I think that the current diesel technology is beyond reproach in performance, refinement and FUEL economy terms. But it's quite immature, especially considering the very prescriptive emissions control systems.
With a new car you can stick to the 30,000+ mile service intervals. It's this which attracts fleet operators. But if you're buying new and plan to keep the car 10 years, let's say, then I'd advise you service much more often. Let's say no more than 20,000 or one year between major services.
Common rail diesels (my 2002 model year 2.2 HDi was one of these) deliver stonking performance in stock tune. The fuel economy isn't bad. Note that I'm not saying it's sensational either.
The midrange thump is addictive and all the time engine desingers are getting cleverer, the usable rev range gets better. One thing diesels are not good at is pulling from sub 1000rpm, despite what others say. A petrol engine will do that quite happily, even if it does it slowly at first.
Long term running costs can mount up though. As I said, the technology is still green and wet behind the ears, despite its spirited and muscular on-road performance.
Basically I suggest that you go and try a few diesel models alongside similarly priced petrol ones and see which you'd rather drive day in, day out.