I might've gone a little bit OTT at MyShape. I only have 1 summer dress and love wearing them.
I'm finding it hard to link to individual items on MyShape.com so I'll post the individual details:
http://www.myshape.com
* Dot- and Ring-Print Cotton-Woven Dress by: Mac & Jac style# 200662
* Pleated Dress with Studded Belt by: Theme style# 215476 (this one is my favourite. I'm sure I'll have to have it altered but that's ok!)
* Stretch-Jersey and Woven-Cotton Floral-Print Dress by: Lily style# 212632 (mine in the inversion of these colours black on top, red skirt but I must've got the last one because it isn't there anymore)
* Another one that is now sold out is very similar to this one Ruffled Jersey Dress with Empire Waist by: Max & Cleo style# 208515
Plus a little black top with a zip in the back- nothing similar left on the site!
All up it was US$108 thanks to a great coupon from Ebates.
ETA: I always use coupons from Retailmenot even when shipping internationally. The only ones that don't work are free shipping ones.