You may be able to trial the new "Universal Search". Contact Ovid for details of trials and demos.
"Ovid Universal Search, a cross-platform search solution available to OvidSP users. The search system adds the ability to access up to 10 web connections selected by the customer". More channels if you pay more.
See Miriam Drake: http://newsbreaks.infotoday.com/nbReader.asp?ArticleId=51182
"a new, premium cross-platform search solution now made available on OvidSP"