Down town has really gone down-hill. I barely go there (maybe once or twice a year) for concerts. I've been to the sak's a couple times and IMO, they don't have that big of a selection. They do have Chanel <-- I remember for sure. Unless its changed. I haven't been there for a year or two.
I work downtown but rarely shop there....there's really only a Macy's and Saks as far as department stores go. And Brooks Brothers. The Saks does still have Chanel. I actually go to the Saks in the Cleveland area (Beechwood Place....) and it's much nicer.
Ross Park is certainly the high-end shopping destination, but I also love South Hills Village (which is closer to where I live). Not as many upscale stores (no Tiffany, no LV), but a nice place to shop.
Other than major malls, you might also enjoy shopping in Shadyside or Mt. Lebanon, both have some cute shops and cafes, coffeehouses, etc. Also, I believe Sewickley has some cute shops/dining destinations, but I've not been up that way in a while!
It's great to see so many 'Burgh gals on this board!
As for my Sunday, I did a little shopping (bought a new Ipod touch as my early b-day gift to myself!!) and then went to my parents' for dinner. I had already bought a new car this week, but I guess that just isn't enough!!!
Tonight will be nothing more than a bubble bath and a glass of wine......