I love this list, I kept thinking "ditto!" with almost everything you wrote! Because I can't help myself, here is some of my feedback on some of those products:

For boob cream- I loooove the Motherlove Nipple Cream. The Earth Mama Angel Baby one was really grainy to me, and I'm not a big fan of the cocoa butter smell (to each their own!). The Motherlove cream saved my nipples those first few weeks and I still use it after a long pumping session.

Leak management- gurl I feel you on being leaky! I am SO leaky. I love the nighttime Bamboobies, they're the only ones that work for me (and I have to switch them out three times a day). The downside is they're pretty obvious through clothing, so when I have to go out of the house I'll pop a disposable lansinoh one in there instead. But Bamboobies all the way!

Leak Collection!- Yes! The Milkies Milksaver I have has been great at catching the ~1oz I leak from the non-nursing side. Now that Miss V and I have more of a breastfeeding pattern that involves her only eating from one side per session I'm going to try out a Haakaa Silicone Pump to see if the suction will draw out even more ounces from the neglected boob.

Extra Pump Parts- NeneSupply on Amazon is a Spectra pumping girl's best friend, especially for hard-ish to find and expensive spare Spectra parts.

Nursing Bras- They're expensive but I'm a total Bravado fanatic. I'm a big girl and they carry a wide variety of sizes, even for the much bigger bust sizes. And they recently released this hands free pumping attachment that, the few times I've experimented with it, was freaking awesome. I hope it continues to be awesome when I go back to work!

Edit: Oh! I forgot one of my favorite pumping accessories! The Pumpin' Pals Super Shields have made a difference in my output but are also a thousand times more comfortable that regular flanges. Plus you can recline while pumping without spilling breastmilk everywhere! I was gifted these by a friend at my shower and I was skeptical about them living up to the Amazon reviews hype but I am definitely happy to have them.