Tablets forum: I want to buy a tablet help me to choose one :)

Hi everyone I need help about choosing android tablet, I look for tablet with specific abilities and requirements. I have unlimited budget for it.
The things I want in tablet are: (the general ones)
*Big screen with good resolution and ipp witch display well outside at day light
*good barratry life (at least 8 hours)
*good storage capacity (16-32 GB with SD card extension option)
*overall components (CPU , GPU , Ram , and other stuff like that ) at high quality and with let the tablet go smooth and lug less with movies / browser / some games
And now the special requirements:
*available external keyboard (Wi-Fi/Bluetooth/Dock) for separate purchase.
*available 3G (for internet only not for calls) and if there is no 3G option so available 3G dongle for the tablet
The most important thing for me at the tablet is option to connect to your pc and watch movies or hear songs or just transfer files and use the tablet as a remote PC while the tablet connected to your pc at home and the pc display is on the tablet and you can do everything like you do at home except gaming or special uses.
Example for this service - asus mycloud app:
http://www.youtube.com/watch?v=zKNqNVr9zLA
I putted my eyes on the Asus transformer pad witch include all the things I want till now
But I don't know which of them to choose (problems / performances / and more..) and which of them has 3g option by dongle

if there is another app that does the same like mycloud about showing the windows screen at good quality (not teamviewer ) it would change my mind a lot about this tablet because this is the main thing and the keyboard dock that attracts me to it.
So if anyone know about app that does the same and have tablet to offer me about or know about the asus eee pads and have a recommend for me it would be great!
Thank you a lot !