Actually was going to ask the same question. Logically I think PPV and media buys will work with email and zip submits. But I would like to see the advice of experienced dudes)
The most success I've had with submits has recently been on ppv traffic sources. I used to find ways to get them into the big G and Yahoo/bing but I'm not willing to put up with all the bullshit involved anymore.
if you are not bothered about anything you can move for emailtrafficsoruce.com. there packages will be affordable and also will fulfill the quantity you expect.
Traffic Vance, Lead Impact, AdOnNetwork, Media Traffic, Direct CPV, Adori. Watch out for the scrub. Most email submit advertisers start scrubbing with in the first 24 hours.