Do you mean the Antec SLK3700 case, do you like it aesthetically or ergonimically? I like it ergo because it offers loads for the size, don't particularly like the way it looks though.
If the difference in PSU's you have been browsing are not much price wise (I would guess they would be around the same price) then it would give you some futureproofing to get the 450w, so at least you can add what you like and not have to worry, because you have sufficient power for quite a lot of drive/fans/lights/a ferris wheel, whatever you like:D (to a further extent than 350w)
Liam
