hi guys

right i am stuck again i have just had to re think finances again this month. but i have been looking around i i have anrrowed it down to three camera

fuji S20
fujiS7000
OLYMPUS CAMEDIA E-20p Digital SLR

all i want to do is use the camera for snap shots of kids and family through to art stuf for my own benefit. maybe a back up to the f90x pro that i use working.
new to digital on this so i need advice on waht is the best to get?
i will need to get the images blown up a fair bit when printed and need to maintain the clarity of image. i see the s20 has 6mp yet the s7000 has 12 mp?
Would this make a large diffeernce?
Also i would want to use filters with the camera, hama, cokin ect with an external flash any recomendations
sorry to go on and thanks for all of gthe assistance..

sully