I'm making the switch to seperates too after I fried my piccoboard, www.aeromicro.com has great deals on esc's and gws rx's or you can get a Hitec rx from www.servocity.com which has free shipping. If you have a tx with revo mixing, all you need is a basic gyro, you may be able to find a used one on here or ezone for a good price, I just got a great deal on a csm 180 for $25!, couldn't believe it... If you don't have revo mixing on your tx then you need a head hold gyro, Futaba gy240 is a great choice which is about $100...

May end up a little more than a piccoboard but well worth it, my case proves that, with seperates, if something gets damaged you just replace it, with a piccoboard, you need to buy a whole piccoboard or you need to get everything again... Plus if there's a chance you may go brushless later then you should for sure go with seperates...