My version of the 8 tone spanish scale is the same as chris's but the 5th is flat, instead of natural. I never use this scale as such, instead I play it using the 8th tone as the starting point. So then it becomes just a regular minor scale with an added b5. Then it's easy to use this scale over any minor sequence. You end up with F, G, Ab, Bb, B, C, Db, Eb. Play over any sequence in F minor.
This would bring up another topic. If you really wanted to hold true to using this scale in spanish style, simply play it out of the box. Use this scale over a F minor sequence (example), but start whatever your going to play with a major second above the original root. This case G, which leaves you with the Spanish 8 tone in it's original form.
Pentatonics are nice sounding, but they can quickly become monotonous and cheesy. Consanance is the novice musicians best friend. It does take a certain level of musicianship before one can start to use dissonance intelligably in their music. Don't be afriad to experiment with it, a dissonant note says alot more than a consanant one. Try writting melodies with dissonant notes, instead of only consanant notes. A tip is any note that is meant to create tension, it's even cooler to increase that tension. Even greater when that tension is released with a following consanant note.
"My whole life is a dark room...ONE BIG DARK ROOM" - a.f.i.