A safe, cheap combination that might be worth trialling is an approved white light solar filter over the front of the scope and a Baader Solar Continuum filter at the eyepiece. This is a dark green narrowband filter that enhances surface contrast, supposedly allowing granularity, etc., to become visible:
http://www.alpineastro.com/Solar_Obs...olar_Continuum
Expensive though it may seem, it's hard to beat the value for money package that the PST offers, though. Very different from normal astro observation, solar observing is more like viewing Comet McNaught, where day by day the object changed and we couldn't be sure what would happen next. It's addictive stuff!