I went from Martin Logan Electrostats with one sub to conventional Tower speakers with no subs, so, I was in a similar situation... Speakers are a very personal choice, but, here are some things I noticed:
1. Conventional speakers may sound a little bright from your current panels because of the focused tweeter. This is not necessarily bad, but, based more on the architecture change you are making. Give it a chance before dismissing speakers that may sound initially bright. Toe in and positioning makes a big difference with "brightness" with conventional speakers.
2. For Bass, to make sure you will not want subs, look for tower speakers with 8 inch plus woofers and a 19 to 20 hz +- 3db rating or lower, ie. consider 8.5 inch and 10 inch woofers.. 12 inch can also be great, but, not very common.
3. Speakers from a specific manufacturer tend to follow a similar formula. Read up on what that formula is, make sure it is your cup of tea, and try to listen to at least one of the speakers that the manufacturer makes. Even if it is not the model you are considering for purchase, it will give you a taste of their sound philosophy.
4. Opposite to what you currently have, conventional speakers move a lot of air. This gives you that "chunk" and "push" that you are currently missing. Look for that in the speakers you consider... It is one of the reasons you are moving away from your panels.
5. If you are near a big city, for that kind of money, you can punch higher with used speakers on Audiogon and Audiomart. Of course, they need to be local, so, you can go listen to them. This is how I did it, and I am very satisfied.
Personally, after many years with Electrostats and a subwoofer, I am glad I moved to conventional tower speakers.... Even though I miss the wide dispersion of the panels, proper positioning of conventional towers with the massive movement of air has left me more pleased with my sound.