Here are a few places that do ECU upgrades. I advise doing it locally but you can remove the ECU very easily and ship it for flashing. I have found that its more expensive in Canada so shipping might save you some money though.
www.awe-tuning.com
www.fabspeed.com
www.evoms.com
www.suncoastporsche.com
Just teasing you about the caps. 
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2000 Black Boxster S
EVO Intake & GIAC Tuning
Headers & Porsche Sport Exhaust System
ROW M030 Suspension
Front & Rear Strut Braces
B&M Short Shift & EVO Billet Linkage
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