Kohl's has a line called 'Good Skin' and they have a Microcrystal Skin Refinisher scrub that is only $25 (but Kohl's has a lot of sales...). I have had professional microdermabrasion, and the feel of this scrub is soooo close...plus the results are wonderful.
Kohl's beauty lines are owned by Estee Lauder (you will notice that they sell cheaper counterparts of MAC and Estee Lauder lines there too) so you know the quality of everything is pretty good.
After using this scrub, make sure you use a good moisturizer and if you are going in the sun, a good sunscreen (since your skin is now more sensitive).
Good luck!