Amp help for the Maggies?

Well I have settled on a pair of speakers. I went to audition a pair of maggies and was blown away. I have never heard something so musical and transparent. The dealer does not have that much selection apart from the maggies, but just for comparison sake I listened to a comparably priced B&W speakers and was almost offended. So the choice is made, I am getting maggies (MG12 or 1.6).

I have a source (AH, Njoe Tjoeb 4000), but still need to match an amp and pre-amp with these. I am thinking about doing a DIY preamp. Most likely a Modified Grounded Grid or a Modified Foreplay design. I am not sure what to do and would welcome any suggestions. My real problem is I need an amp that can deal with the power hungry 4ohm load of the maggies. My budget is about $1000 and would like to buy used. I am considering the McCormack .5 Rev A of DNA 125 but I am nervous about having that little solid state power. If anybody has any ideas please help me out. I know there are some diehard Maggie fans, let me know what you think, I have very little to audition here in Memphis TN.

Thanks
Eric Baer