How to make more room inside my computer

My computer specs:
-i5 4460 3.20GHz
-Sapphire R9 270 2gb
-Corsair Vengeance DDR3 1600Mhz 2x4GB Dual Channel 8GB kit
-1920x1080 LG monitor
-500w Corsair Bronze
-1TB WCD Hard drive
-ASRock Z97 Anniversary Motherboard
-Windows 7 Ultimate
-Bit Fenix Mid-tower case

Hi

I am trying to find out what would be the best 'Full' tower case that is made strong but doesn't consume my whole wallet. My reason for trying to find a better case is that it is getting very tight in my current tower with my current card and PSU taking most of the space.

I am now looking to purchase a new GPU for Fallout 4, Dishonoured 2 and future games. The GPU will be one of the GTX 970's, probably an MSI, and this card will only just fit in my case but I would have to push all the wires out of the way and also it has it PCIE connectors on the top so I need a slightly wider case as why side panel will probably only just cover it.

Now I am told I'm better off getting a new PSU just in case as my current PSU is a budget one and isn't really built I think for such a hungry and powerful card.

Also I presume if I am going to end up having such a powerful system I will require a good quality PSU that gives clean power to my components so they run efficiently.

I would like to get a Seasonic full modular PSU as many have recommended Seasonic as a hardwearing PSU and a full modular one will allow me to eliminate the wire probably as a lot of my current wires I only partly use. So I would be able to detach the ones I don't want if I got a modular one.

What is the communities opinion on this?
 
Solution
Ok, firstly you dont need a Full tower to comfortably house all of your components. A good quality mid tower with a good cable management system will do it with more than enough room to spare. Full towers are really designed for people who want multi-GPU systems with large cooling radiators. I use a mid tower and look at my specs in my signature - I can personally verify that there is A LOT of empty space in my system.

Here are some great high-end mid towers than would be perfect for you:

- Corsair Obsidian 450D

- NZXT H440

- NZXT Noctis 450

- Aerocool Aero-1000

- Corsair Carbide 300R

- Be Quiet! Silent Base 800

- Corsair 600T

All of those cases are high quality, spacious and well equipped mid towers that would be great for...
Ok, firstly you dont need a Full tower to comfortably house all of your components. A good quality mid tower with a good cable management system will do it with more than enough room to spare. Full towers are really designed for people who want multi-GPU systems with large cooling radiators. I use a mid tower and look at my specs in my signature - I can personally verify that there is A LOT of empty space in my system.

Here are some great high-end mid towers than would be perfect for you:

- Corsair Obsidian 450D

- NZXT H440

- NZXT Noctis 450

- Aerocool Aero-1000

- Corsair Carbide 300R

- Be Quiet! Silent Base 800

- Corsair 600T

All of those cases are high quality, spacious and well equipped mid towers that would be great for your components.

As for a PSU to run a 970 with the rest of your system, I would STRONGLY suggest one of the following:

- EVGA Supernova GS 550

- XFX 550 XTR

- Antec VP 550

They are all excellent quality modular PSUs with Gold rated 80+ efficiency. Seasonic are a great PSU manufacturer, but not the only ones. However, if you chose the EVGA Supernova, its actually Seasonic that make it and EVGA just add their own stuff to it.
 
Solution
So which would you recommend as the best for my system? They look basically the same visually and in performance.

Also quickly just explain the ratings such as gold, silver and bronze and so on as mines a bronze.

Have to say I do like the 'Be Quiet! Silent Base 800'
 
the gold, silver, bronze etc ratings are a measure of efficiency. an 80+ bronze unit powering a 500w system will draw up to 600w from the wall.
a gold rated unit would draw 550w or something similar from the wall.
^rough maths. essentially the more efficient the unit, less energy (money) is needed to run it.