Hpe540f and moving to a bigger case and other minor questions

Question

ok, so the thing is, is that since I've gotten my hpe540f (or VERY similar computer in the same line), I've been slowly improving the computer by adding a better graphics card and a better PSU (550ti and a 600 watt psu if you must know) and the case has started to get a bit cramped and the temperatures in the case are at a semi-alarming rate and I've tried different methods to lower the temperatures (cleaning/dusting and wire arranging), but I eventually deduced that it was the airflow of the case, so this is where my questions come in...
I've never really messed with a pre-built computer before and I just need to know that if you really can move to another case and whatnot easily (sounds like a silly question, but I've never had to move entire components to another case before and previous computers I had were built my dad or the both of us)
I've also had my eye on a certain case which seems to be bigger than my current case and is a bit on the cheap side, but has gotten good reviews and is made for gaming (which I intend to do a lot of or use most in my computer) I just would like to know if this computer case would work with the components I currently have and will last me...if not then by all means if you have any other suggestions on cases I could get, that would be great too
Below I'm going to link the product pages for the case and another page that seems to list most everything about my current computer minus the upgrades I've made over the years (but I listed them above and they aren't too significant that I doubt it would matter)
http://h10010.www1.hp.com/wwpc/ca/en/ho/WF06b/12454-12454-3329740-64546-64546-5035344-5068325.html?d...
http://www.newegg.com/Product/Product.aspx?Item=N82E16811147153

Answer 1

Hi,
The issues that you will run into when transfering the existing "guts" of your PC to a new case are:
Motherboard mounting --> many cases should be able to accomodate most of the mounting holes
Rear I/O plate -- you need to remove this and transfer it to the new case as one is not included
USB header connectors -- make sure that the new case can handle the USB motherboard connectors
Front panel connections
The case for the HPE-540f appears to have slotted air intake vents at the top so the PSU should be mounted fan up so it can draw cool air from the upper side vents.  Double check this as a possiblity on how to reduce heat.  Additional cooling ideas: PCI slot cooling fan and vented PCI slot covers.
My HP e9280t appears to have the same case. I am running a much higher wattge video card, higher wattage power supply, higher wattage processor, more memory dimms and three hard drives.  The point here is that I am not experiencing heat issues. 
HP DV9700, t9300, Nvidia 8600, 4GB, Crucial C300 128GB SSD
HP Photosmart Premium C309G, HP Photosmart 6520
HP Touchpad, HP Chromebook 11
Custom i7-4770k,Z-87, 8GB, Vertex 3 SSD, Samsung EVO SSD, Corsair HX650,GTX 760
Custom i7-4790k,Z-97, 16GB, Vertex 3 SSD, Plextor M.2 SSD, Samsung EVO SSD, Corsair HX650, GTX 660TI
Windows 7/8 UEFI/Legacy mode, MBR/GPT