I have also tried Ice Age Audio power cables and found them to be excellent products.
My two cents is that a lot of the differences with cables and power cables is noticeable immediately and then, after a bit, you can't remember the difference. In other words, the differences are slight so the questions are how much you want to spend to get slight improvements and is your system revealing enough to warrant the expenses.
So when I've done improvements in cables and power cords, I either find a great dealer like Ice Age and also Pine Tree that were both mentioned above who give great stuff at reasonable prices or I look for used products.