Fouad bhai.. the camera and computer I use are as follows:
I use 2 cameras mostly, one is a DSLR and the other is a MegaZoom P&S!
DSLR / Lens:
1) Nikon D3100 with 18-55mm Lens Kit
2) Panasonic Lumix DMC-ZS7(TZ10)
Its a self customized Computer..
Display: 23" Samsung Full HD LED Monitor
Processor: Intel Core i3-2100 Dual Core 3.1GHz (Sandy Bridge)
Memory: Corsair XMS3 6GB 1333BUS DDR3
Storage: WD 1TB HDD Black Caviar 7200rpm
Graphics: For now its internal board chipset (1.7GB as it states) have planned an upgrade to Nvidia GTS 250 1GB 256bit DDR3
PSU: Cooler Master Exteme Power 460watts
OS: Windows 7 Ultimate x64 and Linux Ubuntu
Acc:A4-TECH X7 Gaming Mouse(2500 DPI), Dell Wireless Bluetooth Multimedia Keyboard
For Photo Editing: Adobe Lightroom 3
For Video Editing: Sony Vegas HD Platinum 10 Pro