If you intend to play on your SCPH-10000MEC, bring earplugs. The launch units are notorious for having a very loud, whirring 40mm fan. Sony significantly improved this with the SCPH-15000 and SCPH-18000 revisions.
Sony designed the SCPH-10000 not just as a successor to the original PlayStation, but as an ambitious "entertainment machine". Design Cues: scph10000mec