definitely follow their advice. also, they want to check your surroundings since where you skype from is most likely the location you'll be working from. i liked it more than a phone interview. its much easier to sell yourself when the person can look you in the face/eyes so to speak.
in other news:
my equipment just came in!!
Ah so that's what it's about? checking the surroundings and seeing you face-to-face. Understood. So theres a follow up interview after this one? I'm kinda nervious because if they go into deep detail about Macs and tech, I may not be able to handle it. lol I can definitely handle customer scenarios though. I just don't know what to expect.