Thanks for the info mate, and very happy to hear about the silent aspect, that is one of the main reasons i'm considering one for my build, whilst raw performance is nice, the whooshing, humming and buzzing of cases i've been using all drives me nuts, and i'm just at that point now where i'd be happy to sacrifice temperature and performance a bit as a trade off for noise reduction.
The 140mm fittings for all the fan positions is another key factor for why i choose the case, pretty much every case sub £100 doesn't support this, and there's usually always 140mm support in a couple of areas, then a max of 120mm in others. The system i'm on is always beside the screen and at an angle, i can usually hear noise from both ends of the case, so 140mm fittings are ideal at both front and back(and any additional fan positions) for me.
Dust filters are also going to be a huge help in keeping the system clean to, my current case has them but it's got all these ventilation areas everywhere that dust just seeps into the thing, but then what i can expect from a £40 case(does support 140mm fans and has a fan controller though, so not all bad).
The internals do look a dream to work with, i especially like the amount of space provided behind the motherboard tray, and above, should be brilliant for cable management. The HDD placement options are pretty damn awesome to..
Pics look great by the way and you've only made me want the R4 even more now, or at least cemented my admiration for it..
