Caroline i grew some from seed last year and they were brilliant even if i say so myself, many of them are coming back this year already, i grew them in tubs. Now they were a mixed packet of pansy seeds and were bought from b and q and they have them again this year i saw them earlier (wish id known you wanted them i could have got you some) they were rather expensive though at 38p (their basic range in a white packet) but totally brilliant.
i do have a packet of pansy karma blue butterfly if you would like some i could send you some seeds pm if youre interested.