Try searching on this comparison site, click here
Also, if you or your children are in education (learning or teaching) you will qualify for the academic versions, ie Macromedia Studio 8.0 Student & Teacher Personal Edition Full Version for PC, Price Range: £69.00 - £76.00, look here click here
Studio 8 Student & Teacher Edition (Includes: Flash Professional 8, Dreamweaver 8, Fireworks 8, Contribute 3, and FlashPaper 2) from amazon for £74.99 click here
Fireworks 4 from £100.00 click here
Hope this helps.