I like the wrap style slings. I have an ellaroo but I hear that Storchenweige and didymos are better, just out of my price range. i can get dd in and out by myself. i have also heard the ergo is very comfy, but have never used one. Here is how I get dd in and out by myself. It took me a few days of practice but now it is second hand and sooooooooo comfy cause the weight is not all on my shoulders.
http://mamatoto.org/default.aspx?tabid=153
http://mamatoto.org/default.aspx?tabid=153