Here are the 3 choices I'm looking at. Also I want a camera with a lens to begin with. I plan on getting more, including some macro lenses in the future - but as long as I can just take normal pics to begin with that's ok. I'm not going to just buy a body (probably).
In no particular order;
Option 1.
Canon EOS 40D
10.1 MP
The best thing about this one is the price - I can find places online selling the body for $1239 AUD (and probably lower) for the body. Looking at maybe $1800 to $2000 with a good lens.
Option 2.
Canon EOS 50D
15.1 MP
Better camera in a lot of other details as well apparently - better images (not just size, but better quality), faster auto focus. Obviously the downside is that it costs considerably more - although there is a website apparently selling pre-orders at $2400 AUD with a Canon EFS17-85mm IS USM. I'm slightly sceptical of this, since the cheapest I've seen just the body selling for is the exact same price (it's a reliable big chain website, I just think they've made a mistake). If it is a mistake then I'm probably looking at about $3000 - to $3200 AUD for the camera with the lens. Also this camera only gets released next month, so it'll be brand new. Might be smart to wait 6 months for the price to come down.
Option 3.
Nikon D300
12.3 MP
Coolest looking of the three. Moderate price range - about $2900 AUD with a good lens. Better quality than the 40D, but not really by a great deal. The best thing about this camera is that it can take continuous photos at a faster rate and store more, and has a better auto focus than the 40D (but I'm not sure about the 50D). It can take up to 8FPS while the 40D can take 6.5 and the 50D slightly less than that - 6.3. Those are still high numbers though, and I'm not sure the benefit is worth the price. The same thing goes with the max mega pixels of all three cameras. 10 MP is still 3888 pixels wide by 2592 pixels high. That's probably heaps. Of course one of the things I want to be doing with my camera is taking macros of insects and high MP is useful because then I have much more room to work with in cropping etc. but is the benefit worth so much money?
This is of course the main issue, are the improved features of the more expensive cameras worth paying an extra $1000+ for, or will I barely notice the difference? If the difference in image quality and ability to take pictures is marginal I'd go with the cheapest. If it really is significant, I'm prepared to go with something better.
That said, as it stands I'm leaning strongly towards the Canon 50D from the super cheap place I mentioned. (Here).
Despite the details of this post, I really know hardly anything about SLRs, and everything I do know, I've learnt from researching the topic in the last 2 or 3 days, so any advice would be invaluable!
Thanks for help in advance
Cheers,