Hi the27offsuit,
Your timing is impeccable! We have just completed a landing page brand of SlotsPlus at http://www.slotsplus.com/usa/ This will be available for you to promote from within the banners page of MainstreetAffiliates very soon. I have a list of banners completed for this but none in the sizes you have requested. Ive just requested now so I hope to get them soon.
I will let everyone know once this brand is ready!
Regards,
Jason