vista ultimate 64 vs. server 2008 resources

im not sure if correct place post, couldnt find better spot.
i running win xp pro sp3 , fine....but upgrade vista ultimate 64 bit

the reason use linux time time , love security features , windows effects.  use many windows programs use full time.

i downloaded vista readiness test , said computer vista business.

so did not vista @ all.

a couple days ago saw trial download 2008 server , had read posts being vista in core, downloaded , installed see how system handle it.  dont know servers.  spent 20 minutes setting run workstation never firewall or anti-virus programs install.  anyway got aero working , applied eye candy find.

i opened online poker game , started 4 active tables.  opened firefox 64 bit beta , opened 15 tabs, had 3 server windows open.
the results ran great,  fast , no problems @ all.  using 3% or less of cpu , 43% of memory.  loved it.

now here question.  have simular experience vista ultimate 64 bit running aero??

i ask because live on social security , cant afford buy os dosnt run well.  2008 server ran whole lot better xp pro does.

my system is:  amd 64 running @ 2.4
                       2gb ddr 400.....planning add 2gb
                       nvidia 6200 agp x8 256mb....planning upgrade agp x8 512mb
                       before uninstalled 2008 server running on seagate 500 gb sata tested @ 82mb sustained throughput

thanks help

think person responding misunderstood asking.

i think installed 2008 free test see if vista okay, since 2008 , vista somwhat same far how heavy on computer.

looking @ specks, should fine vista.  if run heavy games, following through on mem , video upgrades, other that, should work good.

just make sure update bios if needed, , current drivers everything.  if vista installs graphics driver, go , recent 1 card vendor.  have found 1 of common causes of computers not running vista okay.  newer drivers better...

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