Minimum Product price for different products

[2simplesolutions]

Hi,

 

I have a shop that sells signs and printing stuff. my questions is

 

On the posters i sell all with different sizes and prices i want to know how i can make them have a minimum price

 

example, if you buy 1 a3 poster at £3.74, and then add it to the cart it will alert you to my minimum order of £30.00 so it will then make that 1 a3 poster £30.00?

 

Not sure how to complete this any help would be great 

 

HUGE thanks in advance

 

Gary

[PascalVG]

Wouldn't it be better to give a message like "this order needs xxx more to be accepted? Something similar to 'xxx more for free shipping,'

, like explained here:

http://www.prestashop.com/forums/topic/268269-show-remaining-amount-to-free-shipping-in-cart/ ?

 

My 2 cents,

Pascal