Well, I ended up going with the Eheim 2213 instead of the Filstar for my 29 gallon tank. Partly because I really liked the idea of having the same filter 20 years from now. 
Plus I got it for cheap from BigAl's.
Their regular price: $69.99.
Competing website: $67.99.
http://www.superfishstore.com/Eheim2213.htm
Lowered price to beat competitor: $64.55.
Rena Filstar XP1 @ BigAl's: $59.99.
Rena Filstar XP2 @ BigAl's: $74.99.
Plus I got it for cheap from BigAl's.
Their regular price: $69.99.
Competing website: $67.99.
http://www.superfishstore.com/Eheim2213.htm
Lowered price to beat competitor: $64.55.
Rena Filstar XP1 @ BigAl's: $59.99.
Rena Filstar XP2 @ BigAl's: $74.99.