have u guys looked at
Feedblitz
it sounds like what u want.
U can select whether u want the whole post or just the titles.
It gives you the complete template of how your email will look like, giving you lot of control.
I tested it with S9Y and it works like a charm
It even links back to feedburner so u can know who and how many are reading your emails
from there FAQ's
Can I limit the text in emails? I want readers to click through to my site.
Yes. Once you have set up your syndication, click through to your syndication management page and select the edit icon for the feed you want to change.
Now you can choose the maximum number characters you want to include from your post and the followup call to action. When the mail is generated, posts longer than the length you specify are truncated back to the nearest whole word, an ellipsis ("...") added, and then your custom call to action written in underneath, linking back to the original post.
If you want headlines only, set the character count to zero and make the call to action field blank.
You can restore full posts by deleting the value in the maximum character count field.