Maybe before you decide, you should read this thread. It was posted from actual Eagnas owners, not people who "I READ".
http://tt.tennis-warehouse.com/showthread.php?t=109611
Also keep in mind Alpha, Gamma, Laserfibre cannot compete price wise with Eagnas, SP, or Mutual Power. My friend has the Alpha Revolution and it is the same machine as the Combo 3800. He paid $2000 about 4 years ago.
You can spend more on a machine, but in my opinion and experience (1000 rackets now strung on my $450 Eagnas 925 purchased last June), the results will not be any better. Other than mounting a frame, pulling tension (tensioner), holding the tension (clamps), what else can a stringing machine do?
Whatever you buy will string a racket. Some are a little easier to use then others, but whose name is on a machine means nothing. They all perform the same function. Look more for features than brand, most come from the same forge.