Hi! I'm selling 500k impressions on a popular 100x100 arcade banner network for $100. I ussually get a CTR of about 3% - 3.5% so if you use a similar ad it should result in 16k+ hits. Drop me a PM if you're interested.
Please let me know which banner network you are using, how long it will take to deliver the impressions and how you will prove that the impressions have been provided. Thank you.