I'm in the market for new speakers as I blew mine out with my budget receiver cranked to the highest volume...

I'm all over the place with speakers right now, but I'm thinking that whatever I end up buying, I'll need to do something with my receiver/amp situation to get more power to the speakers to avoid this situation in the future...
Is it advisable to buy a new receiver or add a power amp to my cheapie receiver? If it matters, it was the cheapest stereo receiver they had at CC a few years back: Element STR200. I'm assuming the 'amp in' and/or 'pre out' jacks are used to add an external amp. Or is either solution acceptable?
Thanks in advance!!