Acer Aspire 5745g
Hardware
Processor: Intel Core i5-450M 2.4GHz
Video: Intel Integrated Graphics and NVIDIA GeForce GT 330M switchable (Second Generation)
Audio: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
Wired NIC: Atheros Communications AR8151 v1.0 Gigabit Ethernet (rev c0)
Wireless NIC: Broadcom Corporation BCM43225 802.11b/g/n (rev 01)
Wireless
The brcm80211 driver is included in the kernel since 2.6.37. No further action is necessary on the part of the user. See Wireless network configuration if you have problems.
You can manage your wireless connections with NetworkManager.
Power Management
CPU frequency scaling
Touchpad
You should install xf86-input-synaptics, worked out of the box with Xorg.
If you want to use your mouse without xorg, you can use GPM.
Function keys
Volume up/down & mute can be mapped with xbindkeys.