Here is a 3 day a week 5x5 program.
http://www.geocities.com/elitemadcow1/5x5_Program/Periodized_5x5.htm
I don't know how to attach a file on this forum, so I cannot give you the spreadsheet to calculate your workouts with.
Let's use the squat for an example for how to set it up without the spreadsheet to do the work for you.
Say you are a 200lb squatter and want to be a 210lb squatter. Similar to HST, you'll work backwards in 10lb increments from 210 for 24-28 workouts.
Your first two weeks would look like this:
Workout 1
75x5, 85x5, 95x5, 105x5, 115x5
Workout 2
85x5, 95x5, 105x5, 115x5, 125x5
Workout 3
95x5, 105x5, 115x5, 125x5, 135x5
Workout 4
85x5, 95x5, 105x5, 115,5, 125x5
Workout 5
95x5, 105x5, 115x5, 125x5, 135x5
Workout 6
105x5, 115x5, 125x5, 135x5, 145x5
The progression is different from HST in that you add weight for 3 workouts, drop down a little then add for 3 more workouts...repeat until your old 1RM is now your 5RM.
Where in HST we add weight EACH workout for 2 weeks straight then drop down as we move into a new rep period.
Often you will find that the weight on the first & last workout of HST and the weight on the first & last workout of 5x5 will be the same.
5x5, like HST is really something that you can tweak slightly to suit your own needs, but don't tweak it too much or you will end up overtrained.