Relevant Software

Does anyone know of any software for the following:

1) Genealogy which lets me scan Birth and Marriage certificates into the software and then attach to the relevant person.

2) I am on broadband, but is there a program that lets me stop the download at a certain point and then continue the download from when i stopped it.

3) Which software is the best System Mechanic Pro or Nortons Cleansweep, as i need a program that cleans up the rubbish files and lets me speeds up windows.

4) A software that lets me plan my website(by drawings) and then helps me to build it.