Specific RSS & Sharepoint scenario

I have a special scenario in sharepoint that im trying to get working but im stuck.

What i'm trying to do, is Listen to a RSS feed, and when something new pops send an email to a user that is listed in a sharepoint list column.

Any ideas how to开发者_运维问答 get that working?

1. Create a custom SPJobDefinition
2. Set the run frequency to be every 5 mins
3. In the Execute method
   • Download the RSS
   • Check for new items
   • Send email
   • Store the last (rss poll time/last rss item) in a list