What do i do with the "b" side of my direct mail post card?

[Christopher Oliva]

Hey everyone,

I'm about to send out my first round of direct mail postcards to my target list, but I have one question before i go to the print/mail shop to give them my order.

What does everyone put on the "b" side of their postcards?  With my design, I have one side (I'll call it the A side) that has my message to the potential seller, along with my contact info - and the other side( the "B" side) says "houses wanted" real big on one end, and then in the middle it just says "Please see reverse side".  

The "b" side is where i will have the address and postage and i thought that putting my message on both sides would be overkill, as well as it may look cluttered when the address and stamp are added.  Should just have my message on just the "A" side, or on both sides, What are everyone's thoughts?  I know i'm over thinking this, and i just need to get these things printed and sent out.  

Also, do actual stamps vs a printed indicia making any difference on the response rate?  The shop i'll be using told me it would be $30 more to use actual stamps, just wondering if it's worth the extra expenditure.  

Thanks ladies and gentlemen!