Dude...if I'm Philly, I'd much rather have Dalembert and rely on Korver to spot most of the minutes at SF. Plus they have Iggy and Co. to provide just enough to make it a non-issue. And they still have the MLE, so they can always pick up a cheap backup.
I'm assuming, btw, that you mean Marbury goes to ATL, and Dalembert along /w/ Collier and a pick to NY, with Harrington and NY pick going to Philly.
That seems fair and all, but I don't think it's realistic. Just like if I'm Philly I'd rather just keep Dally, if I'm Atlanta I'd rather push for a Curry/Harrington swap.
Solid idea though.