My current favourite bra is the Le Mystere Linguine. I also really like the Debenham's line of bras. Freya, Panache, etc, tend to fit too big in the band for me.
I LOVE Prima Donna bras, they're gorgeous, but their bands literally hang off of my rib cage. Wish they'd offer 26-28 bands.
Which band size are you wearing? Freya and Panache both offer 28 bands. I've tried on the Le Mystere Linguine in the past and I actually found it to run standard with all the other 30+ band sizes (which are all, funnily enough, too large for me so I can't wear them).
I have a 25" underbust and prefer to wear 30" bands (I have no padding and anything else just feels too tight!). I've tried on 28" Freya bands and found they fit really oddly (same with Panache). The cups also seem very big as compared to the bras I currently own. I have two Linguine bras and one definitely fits larger than the other - I wonder if more people tried it on in the shop and it stretched out a bit? If you want a really tight band, I would recommend looking into Debenhams' house brand - I've been wearing mine for 6 months and they are all still on the largest hook.