Jimmy....seriously. These are two totally different speakers. One is very efficient and will sound wonderful with low powered tubes....the 1.3SE is much more dynamic and will sound better with more power.
you need to evaluate what type of music you listen too also. If you lean towards rock/pop, the Dyaudios are the way to go...if you like softer female vocals and have tube power, the silverline is wonderful. You might consider the Sonatinas (next up the line)...they are wonderful and are still less than the 1.3SEs....
Good Luck,
Steven