Hey bookup,
As far as pain #1, you can integrate membership sites with Infusion using the Infusion API. Usually to do this you need to have a programmer on your end the write the integration. Another option is to contact the membership site vendor directly and ask them if they have an Infusion integration (if I'm not mistaken there are a few that have built them and I think AMember is one of them).
You should also check out the following article (which is posted in another area of the Infusion User Community):
http://www.engageselling.com/membersite/If you're not locked in with another membership site it might be worth your while to check this option out.
As far as pain #2, you're right that the initial transition service we provide includes a "contact" data import only. However, Infusion CAN import the rest of your data for you (including past orders, products, and more). This runs at $199/hr and you can call the 866.800.0004 opt. 1 if you'd like to get in contact with someone to get that process started. I would think it would be well worth the small investment in order to make things more efficient on your end & completely cut the strings from 1SC.
Hope this helps!
Kyle
