OOOOOO a camera thread...where do i start?
It all depends on what sort of pictures your aiming at! The finepix is a great camera but slightly limited when compaired to full DSLR's! One will find that its great for "snap shots" and never really takes a bad photo, but once you get really into it you will want the extra options that the finepix just doesnt give!
The D50 is an AMAZING camera and good value for money, the body is well build, the ccd is very sharp and its filled with soooo many options its unlikelly you will actually use them all! It is basically a D70 minus a few features, but as your not a power user i doubt you would notice! (the D70 also turns on slightly quicker..)
As Chris said, Lens can be expensive and addictive (i cant pass a cheap lens up!). Also you may want to buy a UV filter as these are very useful for getting correct colours and stopping anti-gammut colours!
I would strongly advise that if you considering a DSLR to go down that route as the finepix will be great for the first few months but when you want to advance your photo skills it will hamper you!
I HIGHLY RECOMMEND LOOKING AT THE KODICAMINOLTA 5D, as its cheaper than the D50, has almost the same amount of features and at the moment comes with a lens package including an 80mm carl zesis lens! Its won numerous awards and is reccomended as the best starter DSLR on the market. Having used D50's, DSC's, Fuijis etc i cannot find a bad thing to say about this camera, and i will not be selling mine for a long period yet! (well maybe when 15mp comes out!)
A good place to start looking is
www.ebuyer.co.uk < they are cheap, fast and have good after sales service, your likelly to save at least £50 here over, say, jessops!
Im going to shutup now because i could bleat on about cameras all day, pity i cant use them!