Hey there SaraiKhan.
Now hold on a second. That's not necessarily true. Granted, the Broadcom drivers in the kernel do suck (I had a Broadcom BCM4308 AirForce One in my laptop, and it crawled). Wireless in Ubuntu is actually good, and my RaLink RT61 PCI worked just fine. Question: Would you like to try an alternative method to getting your Broadcom card to work at it's full speed, or would you just want to go with a different distro all together? If you want a different distro, your system specs would help us all greatly