I will place your banner in my sports and health related site for 1 month.
My site - http://www.sportsnhealth.net/
Will place your banner in top of my sidebar.
please check my attached image for banner size and area.
my site has more than 2000 subscribers and 2000+ monthly visits.
banner size are
1 banner of 300 x 250
or
2 banner of 125 x 125 each