Thanks soo much for responding!! Found out today that the 3770k doesn't actually fit in the socket of the motherboard (LGA1150), LOL. So I have decided to ''upgrade'' to the 4770k (which does fit) which is actually significantly cheaper haha. (I'm still learning! being only 16 there is a lot to know but i know a fair bit already to be honest)
The PSU I have chosen is excellent for both price and quality, and its by corsair, here is the link: http://www.ebuyer.com/545319-corsair-rm750-fully-modular-750w-80-gold-psu-cp-9020055-uk?utm_source=google&utm_medium=products&gclid=CjgKEAjwz7mdBRDS46_ipNqqsEQSJAC4rrGkWUNCONA-cf2OyM3XtHFa5Kq0Gq59EmQ2gokz4NG04vD_BwE
I hope to get this but I might downgrade to a 700W but I just don't want to underpower my system, in terms of AMPS it is also fine. But I don't intend to overclock, much. I do want to round up the 4770k to 4.0GHz(from the TB 3.9GHz) for aesthetic reasons and blagging rights haha; I'm hoping this won't tax my system nor the processor. I come from Essex but the main market I wish to buy from is ebuyer,scan,amazon etc or Currys/PC world (UK) but PCworld/Currys is often the most pricey for the same thing. Newegg isn't something I like because it is American and can be costly for shipping when shipping is free on a british site you know . My budget is more, anything good for the cheapest possible, although it's fair to say my system is hardly a budget, in fact all this is more upgrades to a system which has a lot less GPU power as i want to be able to Video edit 1080p, game with ease, in a dual monitor setup, both being 1080p. Also, I'm aware of the implications of dodgy PSUs, which is why I am strictly going with brands that are well known such as Corsair etc.
With all that said, I have a couple of questions,
Would the 780gtx be bottlenecked by a 4440s (systems default cpu) and the 4770k like would either one bottleneck it? Separately I mean haha
What PSU would be good for the system I stated before only with a 4770k?
Thanks for your response, much appreciated, sorry for writing a novel.