TimeShift

Minimum System Requirements:
Intel Pentium 4 or AMD 2.0GHz Processor
1GB RAM
8.0GB Hard Disk Space
DirectX 9.0c
128MB Nvidiaa GeForce 6600/ATI Radeon X700 Video Card
DirectX 9.0c Compatible Sound Card
8X DVD-ROM Drive

Recommended Requirements:
Intel Core 2 Duo E6400 or AMD Athlon 64 X2 4200 Processor
2GB RAM
8.0GB Hard Disk Space
DirectX 9.0c
256MB Nvidia GeForce 8600 GTS Video Card
Sound Blaster X-Fi Compatible Sound Card

download:

part1 part2

part3

part4

part5
part6

part7

part8