How can i design my room? -Colour, etc..?

Hey guys,

i'm decorating my room and getting all new furniture and Ive decided what bed, side table, etc. i want its this.. http://www.ikea.com/gb/en/catalog/categories/series/12194/ I'm only getting the bed, bedside table and the 4 chest a drawers though as i don't need the others because i have a walk-in-wadrobe. Anyway.. at the moment i have my walls white and the edges, radiator, window ledge all in black and the lime green as another accessories colour. Im not really liking the lime green anymore so need another colour, any colour and idea's please! Im also looking for some cool creative idea's, to brighten up my room as its dull and boring just white and black!

Thank you :)