Thanks for answering all my gibber jab Monday! And thank you for being here and sharing your wonderful, inspiring collection with us all. By far, the Cohen statue, being signed and numbered as such would be the most special of all your items. That I can see for sure...
PS
Love your username and avatar pic! Quite unique. Where are you from? You have not specified a location. Curious. 
Also, the Shepard statue from ME1, that link you showed me, that's just a presentation site right? You can't buy anything there? Where was it originally sold and where did YOU buy it? I'd love to get one of those. I'm a pretty big ME collector and have mostly all the official NTSC merchandise except for a few things from foreign countries...
PPS
Forgot to thank you for showing me the Portfolio book. That is absolutely FAN freaking tastic man. I never knew something like that existed. I searched, and searched and searched for months trying to find a safe, effective long term storage solution for my precious lithographs and the best I could come up with was "comic" book style mylar sleeves oversized, and an acid free box. This is just so great...I can't thank you enough!