I'd say you still try ooqstart-gnome. I'm using fluxbox, so I'm in a similar situation. However, Gaim, K3b, GDesklets and more all show up in the "tray" (part of the fluxbox taskbar), so maybe you just give it a try?
Even if it does not show up there, you still have quickstart functionality, you just can't directly start applications from there.
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