Does anyone have any credit card processing companies that they'd recommend that integrate really well with NetSuite?

Adyen have been pretty good for us, Eway are great in AU, NZ and I think UK. If you're not doing 50mil+ annually a few of the bigger outfits are not interested. Adyen is $12k usd p/a if you are under 20mil or so I think

Great, thanks @Steve82!