Thanks for the tips, I really appreciate the response. I've managed to accumulate a few under 23 keepers, but they are future investments like you say. Bit of a gamble, but worth it if they start scoring regular points.
The predicament I'm in is trying to find a keeper who is currently performing but not too expensive... I'll take a look at the Belgian leagues and see who is available. I first tried looking at EPL players, but I think the market for EPL is too inflated.
Thanks again!