power steering rack, front boots, upper strut mounts-- HELP!

[liz]

i have a 97 850, which is at the dealer getting an estimate for a cracked exhaust manifold.

they also told me about 3 other problems that they recommend i fix: a power steering rack leak, a tear in the right front boot, and tears in the upper strut mounts.

can anyone tell me which of these, if any, must be fixed sooner rather than later? i've read that i don't have to fix the boot until i hear a clicking noise when turning...

at the moment, i only have the cash to fix the exhaust manifold ($1100-- any thoughts on that estimate?)

thanks.