well ive got 35mm springs on mine made by PI, they are really good tbh got them brand new off of ebay.. it depends on your budget really..
if you want shocks and springs and got a few hundred saved up then i would go for coilovers, i also hear good things about GMAX which are a little cheaper, or if your just after springs you can pick them up quite cheap on ebay, mines lowered on just springs with standard shocks and its fine..