If you like the 3.5, you may struggle to find a lot that you'd prefer near that price point. Because that tweeter has such with de dispersion and crosses so low, the 3.5 behaves a bit like an Omni. I find that sound quite distinctive (and quite appealing). I use the Ohm 100 with a pair of Rythmik subwoofers and I suspect that the current Ohm line with subs might work for you. Unfortunately, most other high quality, extended bandwidth omnis that I've heard are well north of your budget.
good luck.
good luck.