If you liked the 30-30 Marlin, you'll love the 45/70.
There are several versions of the Marlin 45/70. In the past they have made some Limited Editions, you can currently get a new 1895:
1895S - 22 inch barrel, blue, pistol grip walnut stock
1895 Cowboy - 26 inch octagon barrel, straight grip walnut stock
1895G - 18.5 inch guide gun, blue, straight grip, walnut
1895GS - same as the 1895G in stainless
1895XLR - 24 inch bbl, stainless, gray laminated pistol grip stock
http://www.marlinfirearms.com/These are my 45/70's, L to R a cut down Browning 1886, Marlin 1895 LTD III, 1975 vintage Marlin 1895