Where to put my money!? 700$ / Small Stakes NL

[*keyser]

Hi,

I am pretty new to the Rakeback- & Bonuswhoring-Sphere and spent the last days reading up on this whole topic.
I have reached a BR of about 700$ playing only at party, and would like to switch to a site with RB, now.

Which site do you recommend as a first step for my relatively small BR? I will be playing NL50 6max 4-tabling as soon as I have reached 1k$ (currently plaing NL25 6max).

It would be great if you could, based upon your experiences, recommend a site with the best Signup-Bonus/Reload Bonus clearing conditions for NL50 6max and at the same time the best available RB offer for playing this limit.
Also such factors as Signup-Bonus amount and frequency of Reload Bonus offers are important, as well.

Please take into consideration that I am from Europe an do not have to stick to the US-Only Sites.

Though I pretty much know the different offers there are at the affiliates, it would be great if I could get some of your opinions on how far they are a good choice for me and my BR-situation.

Thank you very much in advance!
*keyser