OK.. gonna state some of the obvious stuff:
(a) Know who you partner with. There are strengths and weaknesses in different areas of web stuff. If you are good at graphics, you don't need a partner that does this as well, when you may need someone with SE promotion experience.
(b) Sort the money cut out and stick to it. Also agree to a number of hours a week each.
(c) It takes funds to earn funds - don't expect some "magic" just because you have another pair of hands.
(d) Why think at a $4K/month level?? Assess what you can do in practical terms and head for it.
(e) Nothing turns out the way you want it to be, - adapt and roll with the flow.
Enough of this BS and Good Luck!
