How can I stop the bounce page after adding to cart so that my customer can choose if they want to go straight to checkout or not?
The bounce page only appears if your 'Shopping Mode' is set to 'Quantity on Product Page', so you could change it to one of the other options in 'Design | Options' (v7 and below) / 'Design | Design Options' (v8 and above). However, if you want to keep the quantity field on the product page then you could set the 'Bounce Page Delay' to 0. This will give the effect of 'Quantity in Shopping Cart' while still having a quantity field on the product page.
The bounce page only appears if your 'Shopping Mode' is set to 'Quantity on Product Page', so you could change it to one of the other options in 'Design | Options' (v7 and below) / 'Design | Design Options' (v8 and above). However, if you want to keep the quantity field on the product page then you could set the 'Bounce Page Delay' to 0. This will give the effect of 'Quantity in Shopping Cart' while still having a quantity field on the product page.