Here is a list of resources for HDSLR that I have found useful. Since I own a Canon 550D/T2i it has a flavour leaning towards that camera, however it is not exclusive to it.
Just to add a disclaimer: I have not read all the books listed here – I am not that mad. Also the links to items on Amazon contain Affiliate links that will benefit me only if you buy the item, probably only a book. Any money earned from it will be redirected to this blog.
The Canon 550D/T2i is a great camera. It is not a full sensor camera like the Canon 5D Mark II
but the video ability is just as good. It is well priced and I have found that, as both a Stills camera and Video camera, it is an amazing tool. Granted, I have been more blown away by the awesome photographs I can take with it.
The trade-off comes in the form of the sensor size – affecting your choice of lenses or modifying angle of view of the lens by a factor of 1.6. Different frame rates and audio controls can be balanced with Magic Lantern‘s firmware ‘hack’. The APS-C sensor provides less of a Depth of Field but from my experience it is good enough, besides too much DOF can get annoying and it is hard to keep focus.