I use ProFlowers *a lot* the last couple of weeks, they are great, great email notification, customer service (I've contacted them via emails and phone, no problem, very polite and useful people). They sell over Amazon now which is even better!
They ship flowers directly from the fields, which means they are always VERY fresh, they last a long time. Each order comes with free glass vase. Their packaging is very nice too.
They send you complimentary discount coupons if you use them a lot.