If you had to choose inbetween those two that you mentioned, i would go for Lazerer, since it is the more reputable of the two, at least on this site, since many many of the members here got their lasers from there. So much so that the owner of the company, a certain Max, has become eponimous with good lasers and service.
Do take my opinion with a pinch of salt though, since i have only dealt with lazerer out of the two and i am heavily biased on this matter. Other members may tell you more about Warn laser and their reputation.
PS: You MUST get goggles if you are planning on buying a laser of any actual power, and also, a 1W blue laser is a horrible thing to start a coloection with - it can be very dangerous for the unexperienced with lasers.