If you are getting stuff from the Uk store for a 330 - then this is what i'd order:
A 330 frame
A KK2
A Turnigy TX / RX
4 x Turnigy Plush 18amp esc's
4 motors : Turnigy_Aerodrive_SK3_2822_1275
Power board : Hobbyking Multi-Rotor Power Distribution Board (DIY 8 x output PCB)
Wiring for receiver / KK2 : 10CM Male to Male Servo Lead (JR) 26AWG (10pcs/set)
Props - 8x5 - whichever they have / you like the look of

Lipo - whatever's cheapest with the right plug, 3S (Three Cell) and around 2500
I bought these and they are great : Turnigy Nano Tech 2650 -
http://www.hobbyking.com/hobbyking/s...dProduct=32243
You may also need charging lead and a lead for the flight controller board to connect to the lipo. Look in the battery adapters part of the site.
On the 330 frame - there is no space really to mount the esc's under the arms - so I bought this from the Global warehouse - it's great :
http://www.hobbyking.com/hobbyking/s...S_3A_SBEC.html
If you want to go 450 - then much of this you can keep - but you need to change the motors. I run the same lipo's in my 450. Also on the 450 you want 10 inch props.
There are non short shaft motors listed on the UK warehouse that are fine for a quad - they are listed here :
http://www.hobbyking.com/hobbyking/s...tors-28mm.html
I'd go for this one on a 450 frame with 18amp esc's
http://www.hobbyking.com/hobbyking/s...arehouse_.html
Or you could pick a smaller / slower one.
On the esc's - if you go UK, you are limited to the 18amp Plush esc's. I have used these and they are fine - if you go Global warehouse you can get higher rated ones which give you more headroom for bigger / more powerful motors. Personally i'd buy the 'Brain' 4 in one jobbie that i have as it's super neat and great value
Hope this helps. I too have all my Buddy codes deleted

So just get shopping.
Remember - the bigger / heavier the Quad is - the more expensive everything is to get similar performance / flight times. I bought the 450 to carry a camera and gimbal, but am thinking I need to go bigger (Tarot Ironman) is what i'm looking at now as I don't want a Hex really. These things are relatively cheap, so you can always swop stuff over if you change frames in the future