traffic ratio based submitting - $100
The traffic ratio and credits calculation will be similar You will be able to set the values of min. incoming traffic required and traffic ratio required from admin. If a domain doesn't have enough credits its plug will be rejected outright, no queuing.
hosted videos / our videos - $60
u will be able to add hosted video posts from admin by either providing url to video file or entering code for embedded player. These will be listed on "our videos" page.
+/- voting using ajax - $30
Don't know what u mean by +/- voting. I can provide u ajax star voting as seen on nastysix
chosen ones - $30
You can set posts as "chosen" from admin and they will be listed on "chosen ones" page.
tags per post, tag cloud - $70
Users will be able to enter multiple tags for each post. Posts can be listed for each tag. Tag cloud will be displayed.