I'm having this same problem =(. I've a tablet PC with an AMD cpu and I've noticed this problem occurs 100% of the time when I come back from hibernation. If I turn off the PC and then turn it on again, I can plug whatever want =S. I installed Win7 x64 from my TechNet ISO (checksum checked and verified before installation).
I'm gonna try the USB power settings thing once I get back home, as well as uninstalling/reinstalling AHCI drivers (I've no idea where to get those). Other than those suggestions, is there anything else I can do?
Edit: I'm gonna do those solutions, and I just found something that might fix it. It's specific to my tablet, but you might wanna look at it just in case!
HP Pavilion tx2500z: Windows 7 USB Crash Fixed - gdgt
interesting thing you say this because i just checked and i have 6.1.7600.30103 version (the one you quoted is a earlier driver version...)
if you want you want want to try those too...

i have managed to get this laptop pretty stable so as of now i have not gotten any freezes from inserting usb devices (although i updated a bunch of drivers also...)
here's the link
Realtek
My Computer
At a glance
Windows 7 Ult x64(x2), HomePrem x32(x4), Serv...Turion X2 ultra (oh well came with laptop)/P4...OCZ Dual Channel 4GB kit/ 1gb Dual ChannelHD 3200 graphics /GMA x3100 (yay for intergra...
- Computer Manufacturer/Model Number
- Tx2500z Tablet Pc/Homemade Server
- OS
- Windows 7 Ult x64(x2), HomePrem x32(x4), Server 08 (+VM), 08 R2 (VM) , SuSe 11.2 (VM), XP 32 (VM)
- CPU
- Turion X2 ultra (oh well came with laptop)/P4 @3.2 (yes P4)
- Motherboard
- IDK HP Motherboard / Intel DG965SS
- Memory
- OCZ Dual Channel 4GB kit/ 1gb Dual Channel
- Graphics Card(s)
- HD 3200 graphics /GMA x3100 (yay for intergrated!!)
- Sound Card
- Realtek HD Audio(mic working, well sort of)/Siig IC-70012
- Monitor(s) Displays
- built-in Hp 12" laptop screen/ Acer 19"
- Screen Resolution
- 1280x800 /1440x900
- Cooling
- All Air Cooled
- Mouse
- Logi MX Rev. /MS Wheel Optical 1.1A /Logitech Optical Mouse
- Internet Speed
- College baby but its still routed through vpn to 1536k...
- Other Info
- love my wacom pen and pressure sensitivity...
wished it worked in 7, SUSE for that matter though