SOOB  For me, it's all about keyboard access and screen real estate. I've been using third-party iTunes controllers since pre-OS X days and the one thing my preferred apps have had in common is the ability to control iTunes using hotkeys and an absence menu bar icons or palettes or Dock badges or what have you taking up my screen when I don't need it.

SizzlingKeys has all this in spades. And after using the free version for a couple years -- extremely capable as is -- I gladly paid the small registration fee for the "Pro" features.  
(Version 3.2.2)

SOOB  hmm -- wish I could be of more help  
(Version 2.1.4)

SOOB  Have you tried downloading from the Sitesucker page itself?  
(Version 2.1.4)

SOOB  I do not have this problem (Camino v1.5.4)  
(Version 2.1.4)

SOOB  I, too, have problems downloading files hosted on MacUpdate (from any browser). Is there an alternate DL location?  
(Version 2.0)

SOOB  It took a very long time on my machine (Ti G4 DVI) as well. It just finished after probably 4 hours of indexing (I was about to search for issues online when it completed)  
(Version 2.3)