Lack of space means that my new case may have to be a sff - the antec aria looks great and is well specc'd, however, even though it comes with a 300w psu (which is far larger than the average sff psu), I feel that this may not be powerful for a gaming rig based around a leadtek 128 meg 6800 and AMD xp 3200 - are there any sff users who can offer insights?