Virtual Assistant

I need a virtual assistant for 40 hours a week. Tasks include:

1. Filtering Emails / Managing Spam
2. Database Building / Updating Contacts or CRM
3. Answering Customer Service Emails
4. Sending of Greetings eCards, Event Invitations, etc.
5. Calendar Management
6. Appointment Scheduling
7. Travel Arrangement and Planning
8. Video production and uploading to YouTube
9. Writing articles
10. Answering emails
11. Uploading emails to dropbox
12. Creating / Managing Spreadsheets
13. Preparing Powerpoint / keynote Presentations
14. PDF Conversion, Splitting and Merging
15. Sending quotes
16. Transcription of Video and Audio Files
17. Blog writing and Blog Publishing Management
18. Personal Errands (Purchasing Gifts Online, etc.)
19. Preparation of Training Materials
20. Creating Email Newsletters
21. Website updating