Since December I have been doing Crossfit. It is nothing short of challenging, but it is the first type of workout I have found that gets me excited about working out again. One of the things we have done this year, and are just starting again, is a Hatch Squat series. It is designed to increase your overall squat ability over 12 weeks.
I go to the amazing Crossfit Oregon City. They posted this spreadsheet to calculate your weekly weights which was originally found here - http://www.mikesgym.org/programs/uploads/hatchsqt.xls. When people are in the middle of their workout they spend a ton of time trying to figure out the weights that should be on the bar. My idea of fun is a bit warped so I modified the spreadsheet to calculate the plates needed for each weight, personalized for you.
Enter your weights in the yellow boxes at the top. The spreadsheet does the rest. Just print the section you need each week and you are ready to go.
If you have questions or suggestions let me know.