Main Task- Music idea's

Thriller music- idea one http://www.youtube.com/watch?v=rumJ4USRWi4&feature=related
I feel that by using this type of music for my thriller will add to the suspense and terror that i want to build up. This will be played throughout two of my main scenes, the bedroom scene where she shoots jack and also the scene where she is being assigned the case in the car.
Thriller music- idea two http://www.youtube.com/watch?v=c2fwY99c7GQ
This music is slightly less dramatic than the one above. I feel its more eerie and therefore may not fit into the scene as well as my first idea. However the music does create an atmosphere that enables the audience to engage more with the film as it builds up the tension which is what i am looking for.
Thriller music- idea three http://www.youtube.com/watch?v=94blEBYnpnk
This music is a slower in pace compared to the other two but has the same effect and delivers tension suspense and emotion which is what i want the music to portray and illustrate.

Thriller music for romantic beginning- idea one http://www.youtube.com/watch?v=44YGF9fmEEo&feature=related
At 0.51 it begins with a slow piano section which sounds soothing and emotional yet still has that eerie sense to it as though something is about to happen which is still very important within my thriller. This also creates a story and demonstrates the love that the two characters have for one another.
Thriller music for romantic beginning- idea two http://www.youtube.com/watch?v=QINhS2n3fCU&feature=related
At 0.30 on wards the beat begins to pick up and i would be using this section if i were to choose to use this idea for my introduction. It portrays a very emotional and romantic side and will show the couple being in love, however it is also very sad and the slow pace makes it very dramatic showing that something is wrong or something is being hidden which ties in well with the plot.
Thriller music for romantic beginning- idea two http://www.youtube.com/watch?v=NAV23epUyYo&feature=related
This music is the only one that has voices as well as music however they are very quiet and therefore will not take any attention away from the film. This music is more emotional rather than romantic but it's very slow and creates an atmosphere which will enable a plot to unfold.