is so many apps exist for your needs. For example try to use www.teamviewer.com or www.mikogo.com ( I prefer teamviewer, it's provide easy remote input control

is so many apps exist for your needs. For example try to use www.teamviewer.com or www.mikogo.com ( I prefer teamviewer, it's provide easy remote input control and switching between connected computers). Also you can use simultaneously skype voice/video conference and teamviewer session.