Hey nice decision on having an open mind and not being stubborn unlike a majority of Beats owners. Welcome to Head-Fi. First of all, if your budget is under $300 WITH your Beats, sell them and increase the budget with the money from the Beats. Once you find anything respectable above $300, the Beats won't even compare to your shiny new cans. Is this for portable use or home use? Considering how the Solos are Supra-Aural cans, you might want the same configuration? If you want a nice portable can, look no further than a Sennheiser HD-25-1-ii, Vmoda M-80, AKG K581, Beyerdynamic DT1350, and a few that I cannot recommend because I have no experience with. If you don't mind a larger headphone, variety changes greatly with a lot of sub-categories. And if you want an Open-back/Semi-open design, there are numerous options available. However, as you get closer to the Open and some Closed Full-Size headphones, you might want to invest in an Amp as well. If you want IEMs, post in the IEM/Portable Headphone Thread. Hope this helps.