I think I know one - not totally sure: EUcasino. Theres an exclusive 10nd bonus for users of this forum: http://www.latestcasinobonuses.com/onlinecasinobonusforum/exclusive-no-deposit-casino-bonuses/exclusive-$10-nd-bonus-at-eucasino!/msg135087/#msg135087
Nothing about a max cashout written there. I was lucky and had ~190€ after playthrough. Could cash out the whole sum (minus 10 because bonus is sticky). But I don't know if there's a maximum anywhere   If you don't have an account there yet try it out!


Edit: Ohh, now I can think of some more. Sportingbet, Betsson and Betclic - sportsbookies in the first place - all have a casino. There's no regular nd bonus but freespins every now and then. As far as I know they too have no max cashouts (or something like 10000). But you'd have to be really lucky to win that much with a few free spins.

I also recommend sunset casino who have about 1 free spin every day. Never heard anything about them having a max cashout.

@all please correct me if I'm wrong anywhere