Win7 Ult key worked perfectly
Win7 Pro key on the other hand is being hated on by both setup and after-install activation (slui.exe). stupid M$
update: as it turns out, the Pro key is actually for Ultimate too (when I installed Ultimate, it didn't complain about the key being for a different SKU)
Sorry I couldn't respond to many pm's.
I'm in the process of responding to them.
If you paid and didn't receive the key please don't hesitate to drop me a pm.