Engine is hard starting?

In the last few weeks the car has been slow to start in the morning, but better later on. Then today it was even worse even after driving it. I had the battery, starter and alternator tested and everything was fine. What could be the problem?

Sometime when I turn the key it's like the battery is almost dead then it starts up after a few seconds - other times it starts right up!

Thanks - I'll look into that!

I have a 96 taurus its very hard to start I have to start it 25 to 30 times before it will keep on running the it runs very bad for 2 t0 4 minutes the rpm starts around 100 and goes up very slowly until it 600 rpm then it kick in and iddles very good at 1000 rpm. It will iddle no problems until I try to push the accelerator I can bring the rpm to 2000 very slowly but no more or it will staled if I dont let go of the peddle. When iddling the fuel presure stays around 40 if I rev it up the fuel presure drops to 10 lbs.I think that it must be the fuel pump but I cant get why it would be hard to start like that. It makes no difference if I just put the key to run to pump fuel up the rails Itried to turn the key on until the pump stops many times before trying to start the engine and it makes no difference for the first start its always a long time and many minutes before it iddles good.I was wondering if its the fuel pump that is gone can I instale a electric one on the fuel line instead of replacing the very expencive one in the thank.
Thanks in advance to any reply or suggestionsto my problem. The engine is a 3 litre 24 valve.

Thanks guys im replacing the pump in the morning I had to order it today if I have any luck it will be the right one. Here in northern ontario we have to order almost everything and its a pain because we have to weight 1or2 days to get the parts that why its nice to be sure of what we need if we dont want or vehicle out of order for days at the time.
I hope the pump will cure my trouble
Thanks again I apreciate the help.

I change the fuel filter that was the first thing I did and im changing it again as I change the pump.
Thanks for the advise.

I change the fuel pump today it starts right away but I sill can toutch the gas peddle it wont pickup I dont know what else to try now.A fuel pump, filter, I have good fuel pressure but cant accelerate any other idea guys?
Thanks again I really appreciate all the help.