MB, CPU and memory upgrade

[MontyUK]

Need to upgrade again with new MB, CPU and RAM. Perferably Intel based.

Please help with recommendations.

Application is solely business and internet. No gaming at all. Photoshop, web access, and other general purpose apps.

I don't think I need a dedicated graphics card; probably integrated graphics on motherboard.

What is best CPU and MB to go for?

Budget for upgrade in region of £150 or so, without going overboard.

 

[MontyUK]

I may need to do some high res image work, possibly video.

Am I right in assuming that a separate video card is not necessary for my type of applications, and is only really needed for gaming?

I would rather take the budget up than drop the perfromance.