Welcome HB! I'd watch it...any router with that much vibration shouldn't be used...sounds potentially dangerous. Some HF tools are fine, but I've heard one too many stories about those routers to ever consider buying one. Might be good for parts!
There are tons of good quality routers from Milwaukee, Makita, PC, DW, Bosch, Freud, Triton, Hitachi, Ridgid, and even some from Craftsman. Find one that has the features you like, feels good in your hands, and is priced right. The larger routers typically cost more, but sale prices can really cut costs. Hopefully most of your bits have 1/2" shank....either way, I'd get a router that can accommodate both sizes, then buy 1/2" bits whenever feasible. If you'll be spinning alot of large diameter bits, you'll likely want a good size router that's mounted in a router table. My MW5625
and Freud FT1700
are both terrific in the table.
One of the hotter deals going on routers right now is from ReconditionedSales.com
on the Hitachi M12VC...$59 plus s/h. I bought one for hand use and find to it be quiet, smooth, powerful, and comfortable for that application, but note that the Hitachi recon only comes with a 1/4" collet....although there is a 1/2" collet available for ~ $10 or so. It replaced an excellent Bosch 1617
...it's smaller size is more condusive to what I wanted to do.