Upgrading 400d

[AARDVARK]

Hi all.

Want to upgrade and wondered what I should upgrade to,currently have cannon 400d.

Also want to purchase a new zoom lens,as currently have 300mm zoom,would love to buy a cannon 400mm but too expensive,wondered thoughts on sigma's?

[Sambuca1]

From a 400D you would notice a big differance upgrading to a 40D, A good example can be bought for around £300 these days. In my own opinion i would say getting a body such as that and pairing it with the highest quality glass you can afford is the way to go. Camera bodies can and will always be updated where as the lenses more or less last a lifetime.
Dont forget if budget is a problem, High quality Canon L lenses can be hired relatively inexpensively and will make the world of difference to your photography.

There may be many choices of camera to upgrade to, whichever you choose always aim to put good glass on it and you wont go far wrong!

Regards