These spring and summer are all about mixture of boho chic with rock. Vintage dresses, in all lengths, with big flower prints or retro prints will be good. Short-shorts, preferably jeans, and the always chic – big shades.
Another sign of this coming summer is gladiator sandals. I don't think much of them – and they are actually a good reminder to the fact that being fashionable is quite different from being chic – which is about finding your own timeless style, and only taking in what goes along with that style and what is faltering for you.
I would recommend you go vintage and thrift shopping, but if you're grossed by 2nd hand or you can't find what you want, both Top Shop and Urban's make pretty good imitations.
I also recommend my blog :) for more cool recommendations: www.senseofashion.com/blog