I'm also a huge fan of ING Direct (have been with them since 2002) and would gladly send out invites to anyone that wants them (disclosure: you get $25 and I get $10 if you use my invite to open your account).
Oh, and I forgot to mention that part of the reason I'm such a huge fan of ING Direct is because they have Sharebuilder, which I think is the best platform I've ever experienced for managing my Roth IRA (and stocks in general).
Sharebuilder is indeed nice. I had to close my account because my employer has to pre-approve all market trades, and Sharebuilder does not integrate with their system for that. (The joys of working for an investment bank...)
I'd also love to open an account with ING, if you'd send one my way.
I'd love to open an account this week if you want to send an invite.
Actually, I think it's double that right now.
Huh (just checked), it is indeed $25/$20 right now.