Not sure how everyone grinds their spices: pestle & mortar, buy them pre-ground, or maybe use a grinder?
Up until about a month ago I used to buy pre-ground, which produced a good end result. However, I then invested a coffee grinder (namely a krups f20342: [ame="http://www.amazon.co.uk/gp/product/B00004SPEU/ref=pd_lpo_k2_dp_sr_1?pf_rd_p=103612307&pf_rd_s=lp o-top-stripe&pf_rd_t=201&pf_rd_i=B001ALKDGY&pf_rd_m=A3P5 ROKL5A1OLE&pf_rd_r=1FDXFZHDWZ1D2EZJTG1N"]Krups Twin Blade Coffee Mill: Amazon.co.uk: Kitchen & Home[/ame] it retails for about £18 ) - and I then became a grinder convert!
It might seem an expensive outlay, but I've found it certainly makes a difference in the final product, and also prevents aching arm syndrome from the times when I've tried using a pestle & mortar! The other bonuses are that I used to find I might not use up all the pre-ground spices, so now I just buy whole spices, and grind small quantities as required, and larger quantities for things like garam masala. This particular grinder holds about an 85g capacity and does produce a fine powder rather than a husky one.
I appreciate there are quite a few other brands around, but after researching and actually using it, I would certainly recommend it! Just don't use it for coffee after filling it with Indian spices - your java beans might turn into lava beans!
I posted on Real Curry Recipes so can you!