PLLs are a bit long for a cheeky little micro grow imo. Well, they are for the size I have at my disposal. Good shout on the UK section, I didn't realise there was one! I was planning on using 30w-ers...
Absolutely, Use the PLLs cheap and easy to use, they also take up less space and generate less heat then the normal CFLs. Once you have em with some pics, Join the PLL club bro!