Dutch - no link, just keep digging. There were two at last weekend's gunshow in Denver for $75 a piece (full size). Other tables had them for $200! I've never even seen a pre-ban mag for the compacts, but I've never really looked, either.
If there's a dealer near you that does a lot of law enforcement sales he'd be your best bet at snagging some high-caps at a reasonable price.
For ten rounders, KY Imports has them for full size USPs for $18. I left my Shotgun News at home, but they probably have decent prices on compact mags. CDNN is pretty good, too.