Introduction: My Man Cave Needs Work

Joking, don't get out. i just thought it was a funny clip :) So my room has been under change for years since I moved into it. Three years ago i inherited this room when my mom moved out, new and old furniture have gone through my door in parts and pieces and i have been unsatisfied with the result, still! Dresser, mirror, old computer desks, nightstand, adirondack chair, etc... all gone and replaced. DIY wooden bench, hardwood executive desk, 8 hook wall mounted coat rack... all in. My old closet....sanded spackled and painted recently.Take a look at the pictures and hear how I would like to change it all. i am no charity project i know.. but hopefully that isn't what this contest is about.
OFFICE:
so as far as my office area goes... this is my second desk and it is heavier than having the weight of the world on your shoulders. no but seriously.. it weighs a ton. bought a new custom build computer.. made a monitor stand. i have it all worked out but i could greatly use a cleaner more simple and less clustered feeling. it is a waste of space and i would love for something more efficient and suitable for my available space. my computer chair wont fit under my desk and it is a hassle. the arms wrests are all torn up from rubbing against the desks edges and my chair has lost all comfort it had 5 years ago. my shades dont work all to well. they are uneven and drawstring is broken so i tied twine to it and it just isn't the same.
RIGHT CLOSET:
I recently redid my closet. I spackled and sanded it all and repainted it a semi -gloss white. not important but i am dying to create a new form of organization for myself. I would like wooden shelves allowing everything to have its own distinct space. i tore out all the shelving i had because it was of no use to me in the location it was in. the only issue is i have nothing supporting the left end of my closet rod so i have to cluster it all to the right side. no bracket will work because my dad built by himself. this side of my closet is for clothes/apparel. the key is organization and flow.
LEFT CLOSET:
this is my biggest to do project of my whole room. i have plans to put a flat screen tv in here and wire the cable cable through the floor or around my room. currently its behind my desk. i put a junk desk in there and put a blanket it on it to make it more aesthetically pleasing. the goal is for this to be the entertainment end of my closest. i need cash i dont have to make this work. i will put my ps3 and the tv over here and i would like to add some pull out drawers for storage of odds and ends like games and controllers...etc... the printer will be side by side to the tv. the carpet is well it needs to change. i have hardwood floors under the carpet that i really want to incorporate into my new closet. my idea was/is to put a board of wood across the entire half of the closet and put storage underneath, tv on top. i would prefer legless support but i wont know how to do it in a way to safely support the weight of a large flat screen tv. IKEA has many eye catching options upon flipping through their catalog.
BAND WALL:
this is my 1 of my band page walls full of posters of various bands i like and or love. i dont own many things so i took a bench from out patio which was dormant for nearly a decade. it makes for great night stand and dirty clothes rack before i throw them into my hamper. in this space i could use a futon or something smaller that would be ideal but depending on the circumstances of other areas of my room it is up for question because this space is a in case i have the time and money space.
BED:
last but not least... sleep central. i need something more my age (20) and better suited for 2 people. IKEA has really really nice beds. i would like something with a more stylish headboard if one at all. the only change i want here is a new lease on sleeping. no more hard springs or bunching up cause my bed is too short. IKEA can make this happen for me.