£80 is cheap for what you get imo.
Both hard drive cages are completely removable yeah. Cooling for the bottom drives is slightly limited to the that sits between the PSU and HDD cage. There is room for a fan in front of the cage but only for a 20mm deep fan opposed to the usual 25mm fan. You would need to mod the case to get it to take a normal fan. That said it was quite well with the fan thats there.
Red arrows show where you can add a fan at the front and on the end of the upper HDD cage to cool the gfx card. (you get clips with it to fit the fan to the HHD cage)
blue is the bottom fan I explained above.
Green is where the low profile fan would go or where you would need to mod.
Then you have the two fans for the cpu cooler, one on top and one in the usual place.