For those of you who have any experience with Shuttle PCs - Shuttle PCs only come with a 220-watt PSU and I have not seen any information on upgrading to a better PSU. The only upgrade for the PSU I have seen is only a 250-watt silent one. If you were to build a higher end computer using a Shuttle, 220-watt is not going to be an adequate PSU, right? A Radeon 9800 Pro or other high-end cards require a 300-watt PSU alone so 220watt is not going to do it. Can you upgrade Shuttle PSUs? Does Shuttle use some special technology or something, so the 220-watt is ok? Any help you could give me would be appreciated. Thanks.