I started using a Dutch site about a year ago - I landed on it totally at random - how from the eastern US, who knows? Anyway, while hardly any of them can do timeframes, a good number of them have made predictions for me that have come to pass - and it has been very affordable - much more so than some other sites. It's 90 euro for 100 minutes, which is about $104, and you can use it with various readers.
Some of the readers I've used and liked on the site:
Medium Arlette
Medium Soraya
Zeus
Psychic Medium Maria
Medium Cenna (really hard to get in contact with because he's always busy since he's just that good)
http://mediumchat.org I'm not sure how they screen readers or what the process is, but having spoken to most of the English speakers, I would say these five generally have the most accurate details.