no clue, I never used anything else than jack in my "carrier as a music producer". On a side note, before discovering that you could turn a PC into the engine of a music studio, I honestly thought computers were rubbish and hated using them (I had to for my work activities though, but god did I dislike them!).
That's the thing with the .GIG samples. There are quite a few free ones about, but only a few free gems. The paid ones are much better, and essentially free, if you take into account to price of sample packages by commercial companies. Get the free samples, normally crippled in some way, and them buy the ones you need.
There is a very nice piano sample on the Linuxsampler site.
Hi, some of the free ones I have found so far sound amazing - the Westgate trumpets for e.g. - I loaded them in this morning and they sound excellent.
I have a few others downloading but they are quite large downloads and my connection speed is dire (I live in the UK - and not in a City so I have little hope of it improving any time soon).
I'm still downloading the Piano one - should be finished by this evening though I hope.
ardour will not have support for vst instruments until v3.0 AFAIK only vst effects, at the moment lmms does have support for both vst effects and vst instruments and there are zero issues with using either 32/64 bit system