Note:
Slammer and Sargus series have been discontinued by Penn (just sayin...)
pennreels.com
AU, since you are in the market for a rod too, John's reply about the combos is 'spot on'.
The most important consideration for a combo IMHO is that it be 'balanced'.
That is to mean the line rating for both is a similar range as well as the overall weight feels comfortable for the job you intend.
And Penn's combos are well priced considering the combo is usually only $20 more than the reel by itself.
Hope this helps!