Is there a way to NOT have a monthly budget?

My budget depends on the money the site makes. I liked using Adsense where I just gave it at $25 a day cap. and that lasted until I didnt have anymore money.

Adcenter (Microsoft's) is a little different. You have to input a Monthly and Daily budget. All I want is for the Adcenter spend my $25 a day. But I don't think it's showing as many ads as it should because I put a monthly budget of $200 in. (as I don't know if Bing and Yahoo are going to be profitable)

Anyone have any suggestions? Should I just put my budget up to $700/month?

Yeah, that would probably work. It kind of depends on how many KW's you've loaded up to test with, but I always set my monthly/daily budget sky-high to get as much click volume coming in as possible.

You can use the "ad preview tool" btw to check and see if your ads are serving for all of your existing KW's.

I guess just use your 30/31 * $25 to be sure might even try a bit higher and watch your conversions and spendings on Adcenter.