Aside from the fact that Im unashamedly doing this to get some free seeds from this company Ive had a look around and it seems quite a good site with reasonable prices on the seed packs and a nice selection so its actually worth a visit, and the Free postage and packaging is a bonus on top of other seed companies Ive dealt with that tend to charge a few quid and dont even have better prices,  so if you intend to buy some seeds either vegetable or flowers then visit these guys first as you might even make some savings.
Vegetable Seeds
VegetableSeeds.net offers fantastic value for the highest quality vegetable seeds in the UK. Over 400 varieties with next day shipping and free P&P.