The G41 is the odd duck of the ThinkPad family. Remember, that the G41 has a DESKTOP Pentium 4 processor in it. Due to this, it's a thick chassis (cooling), and has low, low battery life as would any notebook running a desktop P4 in it.
The G41 at least has the Nvidia chipset as an option, and the G41 is also a Bargain..... It's 8 oe 9 pounds - power brick is HUGE..... So if you are not going to be toting it around with you all the time, it might be the machine for you. _
Plus, the G41 Floppy and optical bay is "fixed", meaning you can't remove the drives to upgrade/swap.
You need to run it open even when connected via KVM to another keyboard/mouse/monitor as it has venting not only on the side fo the chassis but also just above the keyboard.