You could try using the "United States-International" keyboard layout in conjunction with the AutoHotKey script in order to have the dead keys.

There are no PayPal fees if you already have money in your PayPal account, and you don't need to fund the payment with a credit/debit card. In the future I'll add an option to donate with Moneybookers.

I've been experimenting with AutoHotKey recently (for about 20 minutes) and managed to produce a (slightly messy) script that does a couple of international characters and some dead keys, with the added bonus (?) of letting you know when you've typed a dead key, a bit like Macs do. It works for me as it covers French but of course it's very incomplete; it would be really great if someone with a bit more time on their hands could take that further and produce something more complete, esp. now that the Colemak Portable initiative (!) has picked up (on the other forum).
BTW is there a way to attach files on this forum? Copying and pasting doesn't very efficient :).
Cheers,
a

#SingleInstance
#InstallKeybdHook

^!g::
>!g::
Send `:
Input, Char, L1
Send {Backspace}
if Char = a
{
    Send ä
    return
}
if Char = e
{
    Send ë
    return
}
if Char = i
{
    Send ï
    return
}
if Char = o
{
    Send ö
    return
}
if Char = u
{
    Send ü
    return
}
Send %Char%
return

^!r::
^!s::
>!s::
>!r::
Send ``
Input, Char, L1
Send {Backspace}
if Char = a
{
    Send à
    return
}
if Char = e
{
    Send è
    return
}
if Char = u
{
    Send ù
    return
}
Send %Char%
return

^!x::
>!x::
Send .
Input, Char, L1
Send {Backspace}
if Char = a
{
    Send â
    return
}
if Char = e
{
    Send ê
    return
}
if Char = i
{
    Send î
    return
}
if Char = o
{
    Send ô
    return
}
if Char = u
{
    Send û
    return
}
Send %Char%
return 

e::f
r::p
t::g
y::j
u::l
i::u
o::y
p::`;

s::r
d::s
f::t
g::d
h::h
j::n
^!k::é
>!k::é
k::e
l::i
`;::o

n::k

Capslock::Backspace

^!4::£
>!4::£
^!5::€
>!5::€
^!c::ç
>!c::ç