Amazon . co . Uk have pretty competitive prices and always have discounts going on too . Pcpartpicker is a great site for finding the lowest price for items . Skinflint . co . Uk is good site for comparing prices too . Generally speaking buying from UK is best , komplett is the only half decent Irish site I know of and their prices are a joke . Generally speaking I ' ve found great success with amazon and bulk ordering for free shipping . Sure , you could get some individual parts cheaper from different retailers , but then you ' re paying the difference in shipping anyway ! You wont need to use parcel motel as if you spend over a certain amount think its 100 quid ? they will ship to mainland ROI . Also rbuildapc is a great resource for getting second opinions on builds .