Not only is the SLK-800A $25, you can add a Panaflo 80mm H1A for $4.50. $30 for that HSF combo is definitely a hot deal if you're not set on having the latest & greatest.
This is also the same place that is offering the Panaflo 80mm L1As for $3.75. Another pretty hot deal I found (for people looking for CCFLs at least) is you can get a 13" newer/brighter CCFL tube + dual inverter for $10. Add a second 13" tube for $6 = $16 for dual 29k brightness CCFL. I was looking specifically for "True Red" CCFLs and this was the best deal I found. I ordered 4 x SLK-800A, 4 x Panaflo H1A, 4 x CCFL tube, 4 x extra bulb, and 12 x Panaflo L1A. Total shipping was $15 -- considering the weight of those HS units (500g/1.1 lb each!) it seems very reasonable.