You might consider the new Tascam DP-004 Digistudio.
http://www.tascam.com/products/dp-004.htmlThe DP-004 can simultaneously record one mic level input and one line or instrument level input. The DP-004 can also mix four pre-recorded tracks stored on its SDHC memory card.
The DP-004 is about the size of the Sony PCM-D1 recorder, which is to say, quite a bit larger than a typical pocket recorder. Here are the numbers:
Size, 6.1 x 4.2 x 1.3 inches (155 x 107 x 33.5 mm)
Weight, with 4 AA cells and an SDHC card 16.3 oz (462 g)
I have not heard the DP-004 in action, but I think the internals are based on the Tascam DR-1 recorder.
Price for the DP-004 seems to be $199 at most dealers. This is a new product, so it may be a few weeks before the discounting begins.
Flintstone