I love the silk peel microdermabrasion. Very gentle, very effective(not cheap though) If you get this done a little more frequently at first, you can taper off to 1x every 8 weeks or so. I found it to be a better investment then spending a lot of money on fancy creams. I also recommend light glycolic peels. There is no down time, very gentle, effective(again, not cheap) I've used obagi and liked it, but did not LOVE it. Regardless,, it will not do any wonders if you aren't doing some of the more 'professional' type exfoliation like silk peel and/or peels. Spend more with a trusted dermotalogical estetician, less on products has been my experience. I go to Wicker Park Dermatalogy and Aesthics and see Meredith. She is amazing. PM me if you have more questions( I love this topic...guilty pleasure for sure!)
p.s. for a 'great' everyday light glyoclic peel...try 'Glycolix' pads...$25 and they are really, really great! you can find them on skincarerx.com