Can someone please give me a quick idea of what is a 'reasonable' price/ml for liquid, just so that I know a bad price when I see one 
TIA

TIA

but I dont know...I probably wouldn't pay more than $1/ml but that is more than a lot of people are willing to pay because their are wayyy cheaper vendors out there that offer a great product for a lot lower price.this chart is very useful and up to date. whoever did this did a GREAT job!
https://docs.google.com/spreadsheet/ccc?key=0ApUX4l_CDyRxdFU4OFVRZzlaREdJWUZEUk0yUmpFOHc#gid=0
this chart is very useful and up to date. whoever did this did a GREAT job!
https://docs.google.com/spreadsheet/ccc?key=0ApUX4l_CDyRxdFU4OFVRZzlaREdJWUZEUk0yUmpFOHc#gid=0