In Oblivion i was at first happy when transformed into a vampire however the effects of this transformation soon started to slightly annoy me. Plenty of things are much easier for example new magic and strength but not being able to go out in the daylight makes selling and buying items at the shops rather difficult.
Is there any easy way to cure Vampirism? I was told to collect five grand soul gems but cant seem to find these anywhere

Any idea's where to find these? Also i should probably mention Vincente from the black hand is dead so cant get Cure from him ...
Thanks for any help