Use this site to see what the difference is. You can change what you are comparing http://www.hwcompare.com/17153/geforce-gtx-460-oem-vs-geforce-gtx-750/
The thing to consider is that it is a very important part of a system that you will be using for years. I feel that you might be selling yourself a bit short with this.
It has arrived ,but as it will be a "Christmas" present it is staying in the box. Although I did register the serial number with Canon online as there wasnt a card in the box, and the box does have a lot of Chinese writing on it.
As above and I think FT would like it as well http://www.amazon.co.uk/Fairey-Swordfish-Manual-Haynes-Manuals/dp/0857333623/ref=sr_1_5?s=books&ie=UTF8&qid=1415191015&sr=1-5&keywords=haynes+aircraft+manuals
18-55 with image stabilizer. We are going to the Land of Wonder (Down Under) next year and the price/deal on this is very good. My eldest will inherit the 400 with the 18-55 and 75-300 zoom lens so he will be a happy chappy
Congratulations Captain I use Target but some dont like using any form of profile software. I am not aware of USB 3 issues but have a look on the Eagle Dynamics Warthog forum.